Mercurial > repos > bcclaywell > argo_navis

annotate venv/lib/python2.7/site.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 """Append module search paths for third-party packages to sys.path.
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2
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3 ****************************************************************
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4 * This module is automatically imported during initialization. *
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5 ****************************************************************
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6
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7 In earlier versions of Python (up to 1.5a3), scripts or modules that
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8 needed to use site-specific modules would place ``import site''
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9 somewhere near the top of their code. Because of the automatic
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10 import, this is no longer necessary (but code that does it still
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11 works).
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12
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13 This will append site-specific paths to the module search path. On
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14 Unix, it starts with sys.prefix and sys.exec_prefix (if different) and
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15 appends lib/python<version>/site-packages as well as lib/site-python.
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16 It also supports the Debian convention of
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17 lib/python<version>/dist-packages. On other platforms (mainly Mac and
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18 Windows), it uses just sys.prefix (and sys.exec_prefix, if different,
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19 but this is unlikely). The resulting directories, if they exist, are
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20 appended to sys.path, and also inspected for path configuration files.
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21
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22 FOR DEBIAN, this sys.path is augmented with directories in /usr/local.
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23 Local addons go into /usr/local/lib/python<version>/site-packages
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24 (resp. /usr/local/lib/site-python), Debian addons install into
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25 /usr/{lib,share}/python<version>/dist-packages.
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26
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27 A path configuration file is a file whose name has the form
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28 <package>.pth; its contents are additional directories (one per line)
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29 to be added to sys.path. Non-existing directories (or
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30 non-directories) are never added to sys.path; no directory is added to
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31 sys.path more than once. Blank lines and lines beginning with
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32 '#' are skipped. Lines starting with 'import' are executed.
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33
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34 For example, suppose sys.prefix and sys.exec_prefix are set to
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35 /usr/local and there is a directory /usr/local/lib/python2.X/site-packages
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36 with three subdirectories, foo, bar and spam, and two path
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37 configuration files, foo.pth and bar.pth. Assume foo.pth contains the
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38 following:
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39
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40 # foo package configuration
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41 foo
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42 bar
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43 bletch
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44
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45 and bar.pth contains:
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46
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47 # bar package configuration
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48 bar
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49
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50 Then the following directories are added to sys.path, in this order:
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51
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52 /usr/local/lib/python2.X/site-packages/bar
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53 /usr/local/lib/python2.X/site-packages/foo
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54
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55 Note that bletch is omitted because it doesn't exist; bar precedes foo
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56 because bar.pth comes alphabetically before foo.pth; and spam is
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57 omitted because it is not mentioned in either path configuration file.
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58
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59 After these path manipulations, an attempt is made to import a module
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60 named sitecustomize, which can perform arbitrary additional
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61 site-specific customizations. If this import fails with an
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62 ImportError exception, it is silently ignored.
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63
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64 """
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65
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66 import sys
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67 import os
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68 try:
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69 import __builtin__ as builtins
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70 except ImportError:
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71 import builtins
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72 try:
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73 set
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74 except NameError:
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75 from sets import Set as set
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76
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77 # Prefixes for site-packages; add additional prefixes like /usr/local here
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78 PREFIXES = [sys.prefix, sys.exec_prefix]
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79 # Enable per user site-packages directory
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80 # set it to False to disable the feature or True to force the feature
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81 ENABLE_USER_SITE = None
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82 # for distutils.commands.install
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83 USER_SITE = None
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84 USER_BASE = None
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85
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86 _is_64bit = (getattr(sys, 'maxsize', None) or getattr(sys, 'maxint')) > 2**32
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87 _is_pypy = hasattr(sys, 'pypy_version_info')
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88 _is_jython = sys.platform[:4] == 'java'
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89 if _is_jython:
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90 ModuleType = type(os)
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91
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92 def makepath(*paths):
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93 dir = os.path.join(*paths)
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94 if _is_jython and (dir == '__classpath__' or
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95 dir.startswith('__pyclasspath__')):
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96 return dir, dir
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97 dir = os.path.abspath(dir)
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98 return dir, os.path.normcase(dir)
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99
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100 def abs__file__():
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101 """Set all module' __file__ attribute to an absolute path"""
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102 for m in sys.modules.values():
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103 if ((_is_jython and not isinstance(m, ModuleType)) or
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104 hasattr(m, '__loader__')):
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105 # only modules need the abspath in Jython. and don't mess
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106 # with a PEP 302-supplied __file__
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107 continue
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108 f = getattr(m, '__file__', None)
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109 if f is None:
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110 continue
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111 m.__file__ = os.path.abspath(f)
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112
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113 def removeduppaths():
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114 """ Remove duplicate entries from sys.path along with making them
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115 absolute"""
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116 # This ensures that the initial path provided by the interpreter contains
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117 # only absolute pathnames, even if we're running from the build directory.
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118 L = []
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119 known_paths = set()
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120 for dir in sys.path:
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121 # Filter out duplicate paths (on case-insensitive file systems also
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122 # if they only differ in case); turn relative paths into absolute
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123 # paths.
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124 dir, dircase = makepath(dir)
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125 if not dircase in known_paths:
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126 L.append(dir)
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127 known_paths.add(dircase)
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128 sys.path[:] = L
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129 return known_paths
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130
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131 # XXX This should not be part of site.py, since it is needed even when
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132 # using the -S option for Python. See http://www.python.org/sf/586680
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133 def addbuilddir():
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134 """Append ./build/lib.<platform> in case we're running in the build dir
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135 (especially for Guido :-)"""
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136 from distutils.util import get_platform
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137 s = "build/lib.%s-%.3s" % (get_platform(), sys.version)
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138 if hasattr(sys, 'gettotalrefcount'):
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139 s += '-pydebug'
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140 s = os.path.join(os.path.dirname(sys.path[-1]), s)
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141 sys.path.append(s)
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142
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143 def _init_pathinfo():
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144 """Return a set containing all existing directory entries from sys.path"""
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145 d = set()
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146 for dir in sys.path:
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147 try:
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148 if os.path.isdir(dir):
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149 dir, dircase = makepath(dir)
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150 d.add(dircase)
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151 except TypeError:
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152 continue
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153 return d
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154
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155 def addpackage(sitedir, name, known_paths):
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156 """Add a new path to known_paths by combining sitedir and 'name' or execute
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157 sitedir if it starts with 'import'"""
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158 if known_paths is None:
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159 _init_pathinfo()
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160 reset = 1
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161 else:
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162 reset = 0
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163 fullname = os.path.join(sitedir, name)
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164 try:
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165 f = open(fullname, "rU")
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166 except IOError:
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167 return
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168 try:
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169 for line in f:
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170 if line.startswith("#"):
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171 continue
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172 if line.startswith("import"):
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173 exec(line)
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174 continue
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175 line = line.rstrip()
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176 dir, dircase = makepath(sitedir, line)
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177 if not dircase in known_paths and os.path.exists(dir):
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178 sys.path.append(dir)
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179 known_paths.add(dircase)
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180 finally:
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181 f.close()
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182 if reset:
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183 known_paths = None
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184 return known_paths
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185
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186 def addsitedir(sitedir, known_paths=None):
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187 """Add 'sitedir' argument to sys.path if missing and handle .pth files in
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188 'sitedir'"""
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189 if known_paths is None:
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190 known_paths = _init_pathinfo()
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191 reset = 1
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192 else:
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193 reset = 0
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194 sitedir, sitedircase = makepath(sitedir)
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195 if not sitedircase in known_paths:
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196 sys.path.append(sitedir) # Add path component
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197 try:
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198 names = os.listdir(sitedir)
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199 except os.error:
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200 return
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201 names.sort()
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202 for name in names:
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203 if name.endswith(os.extsep + "pth"):
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204 addpackage(sitedir, name, known_paths)
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205 if reset:
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206 known_paths = None
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207 return known_paths
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208
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209 def addsitepackages(known_paths, sys_prefix=sys.prefix, exec_prefix=sys.exec_prefix):
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210 """Add site-packages (and possibly site-python) to sys.path"""
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211 prefixes = [os.path.join(sys_prefix, "local"), sys_prefix]
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212 if exec_prefix != sys_prefix:
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213 prefixes.append(os.path.join(exec_prefix, "local"))
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214
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215 for prefix in prefixes:
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216 if prefix:
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217 if sys.platform in ('os2emx', 'riscos') or _is_jython:
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218 sitedirs = [os.path.join(prefix, "Lib", "site-packages")]
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219 elif _is_pypy:
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220 sitedirs = [os.path.join(prefix, 'site-packages')]
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221 elif sys.platform == 'darwin' and prefix == sys_prefix:
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222
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223 if prefix.startswith("/System/Library/Frameworks/"): # Apple's Python
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224
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225 sitedirs = [os.path.join("/Library/Python", sys.version[:3], "site-packages"),
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226 os.path.join(prefix, "Extras", "lib", "python")]
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227
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228 else: # any other Python distros on OSX work this way
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229 sitedirs = [os.path.join(prefix, "lib",
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230 "python" + sys.version[:3], "site-packages")]
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231
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232 elif os.sep == '/':
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233 sitedirs = [os.path.join(prefix,
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234 "lib",
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235 "python" + sys.version[:3],
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236 "site-packages"),
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237 os.path.join(prefix, "lib", "site-python"),
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238 os.path.join(prefix, "python" + sys.version[:3], "lib-dynload")]
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239 lib64_dir = os.path.join(prefix, "lib64", "python" + sys.version[:3], "site-packages")
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240 if (os.path.exists(lib64_dir) and
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241 os.path.realpath(lib64_dir) not in [os.path.realpath(p) for p in sitedirs]):
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242 if _is_64bit:
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243 sitedirs.insert(0, lib64_dir)
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244 else:
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245 sitedirs.append(lib64_dir)
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246 try:
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247 # sys.getobjects only available in --with-pydebug build
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248 sys.getobjects
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249 sitedirs.insert(0, os.path.join(sitedirs[0], 'debug'))
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250 except AttributeError:
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251 pass
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252 # Debian-specific dist-packages directories:
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253 sitedirs.append(os.path.join(prefix, "local/lib",
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254 "python" + sys.version[:3],
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255 "dist-packages"))
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256 if sys.version[0] == '2':
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257 sitedirs.append(os.path.join(prefix, "lib",
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258 "python" + sys.version[:3],
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259 "dist-packages"))
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260 else:
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261 sitedirs.append(os.path.join(prefix, "lib",
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262 "python" + sys.version[0],
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263 "dist-packages"))
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264 sitedirs.append(os.path.join(prefix, "lib", "dist-python"))
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265 else:
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266 sitedirs = [prefix, os.path.join(prefix, "lib", "site-packages")]
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267 if sys.platform == 'darwin':
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268 # for framework builds *only* we add the standard Apple
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269 # locations. Currently only per-user, but /Library and
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270 # /Network/Library could be added too
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271 if 'Python.framework' in prefix:
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272 home = os.environ.get('HOME')
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273 if home:
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274 sitedirs.append(
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275 os.path.join(home,
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276 'Library',
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277 'Python',
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278 sys.version[:3],
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279 'site-packages'))
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280 for sitedir in sitedirs:
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281 if os.path.isdir(sitedir):
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282 addsitedir(sitedir, known_paths)
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283 return None
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284
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285 def check_enableusersite():
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286 """Check if user site directory is safe for inclusion
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287
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288 The function tests for the command line flag (including environment var),
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289 process uid/gid equal to effective uid/gid.
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290
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291 None: Disabled for security reasons
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292 False: Disabled by user (command line option)
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293 True: Safe and enabled
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294 """
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295 if hasattr(sys, 'flags') and getattr(sys.flags, 'no_user_site', False):
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296 return False
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297
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298 if hasattr(os, "getuid") and hasattr(os, "geteuid"):
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299 # check process uid == effective uid
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300 if os.geteuid() != os.getuid():
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301 return None
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302 if hasattr(os, "getgid") and hasattr(os, "getegid"):
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303 # check process gid == effective gid
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304 if os.getegid() != os.getgid():
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305 return None
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306
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307 return True
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308
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309 def addusersitepackages(known_paths):
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310 """Add a per user site-package to sys.path
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311
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312 Each user has its own python directory with site-packages in the
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313 home directory.
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314
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315 USER_BASE is the root directory for all Python versions
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316
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317 USER_SITE is the user specific site-packages directory
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318
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319 USER_SITE/.. can be used for data.
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320 """
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321 global USER_BASE, USER_SITE, ENABLE_USER_SITE
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322 env_base = os.environ.get("PYTHONUSERBASE", None)
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323
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324 def joinuser(*args):
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325 return os.path.expanduser(os.path.join(*args))
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326
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327 #if sys.platform in ('os2emx', 'riscos'):
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328 # # Don't know what to put here
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329 # USER_BASE = ''
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330 # USER_SITE = ''
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331 if os.name == "nt":
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332 base = os.environ.get("APPDATA") or "~"
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333 if env_base:
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334 USER_BASE = env_base
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335 else:
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336 USER_BASE = joinuser(base, "Python")
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337 USER_SITE = os.path.join(USER_BASE,
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338 "Python" + sys.version[0] + sys.version[2],
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339 "site-packages")
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340 else:
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341 if env_base:
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342 USER_BASE = env_base
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343 else:
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344 USER_BASE = joinuser("~", ".local")
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345 USER_SITE = os.path.join(USER_BASE, "lib",
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346 "python" + sys.version[:3],
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347 "site-packages")
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348
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349 if ENABLE_USER_SITE and os.path.isdir(USER_SITE):
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350 addsitedir(USER_SITE, known_paths)
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351 if ENABLE_USER_SITE:
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352 for dist_libdir in ("lib", "local/lib"):
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353 user_site = os.path.join(USER_BASE, dist_libdir,
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354 "python" + sys.version[:3],
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355 "dist-packages")
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356 if os.path.isdir(user_site):
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357 addsitedir(user_site, known_paths)
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358 return known_paths
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359
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360
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361
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362 def setBEGINLIBPATH():
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363 """The OS/2 EMX port has optional extension modules that do double duty
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364 as DLLs (and must use the .DLL file extension) for other extensions.
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365 The library search path needs to be amended so these will be found
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366 during module import. Use BEGINLIBPATH so that these are at the start
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367 of the library search path.
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368
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369 """
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370 dllpath = os.path.join(sys.prefix, "Lib", "lib-dynload")
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371 libpath = os.environ['BEGINLIBPATH'].split(';')
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372 if libpath[-1]:
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373 libpath.append(dllpath)
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374 else:
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375 libpath[-1] = dllpath
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376 os.environ['BEGINLIBPATH'] = ';'.join(libpath)
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377
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378
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379 def setquit():
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380 """Define new built-ins 'quit' and 'exit'.
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381 These are simply strings that display a hint on how to exit.
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382
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383 """
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384 if os.sep == ':':
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385 eof = 'Cmd-Q'
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386 elif os.sep == '\\':
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387 eof = 'Ctrl-Z plus Return'
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388 else:
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389 eof = 'Ctrl-D (i.e. EOF)'
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390
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391 class Quitter(object):
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392 def __init__(self, name):
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393 self.name = name
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394 def __repr__(self):
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395 return 'Use %s() or %s to exit' % (self.name, eof)
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396 def __call__(self, code=None):
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397 # Shells like IDLE catch the SystemExit, but listen when their
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398 # stdin wrapper is closed.
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399 try:
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400 sys.stdin.close()
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401 except:
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402 pass
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403 raise SystemExit(code)
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404 builtins.quit = Quitter('quit')
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405 builtins.exit = Quitter('exit')
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406
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407
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408 class _Printer(object):
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409 """interactive prompt objects for printing the license text, a list of
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410 contributors and the copyright notice."""
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411
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412 MAXLINES = 23
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413
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414 def __init__(self, name, data, files=(), dirs=()):
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415 self.__name = name
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416 self.__data = data
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417 self.__files = files
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418 self.__dirs = dirs
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419 self.__lines = None
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420
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421 def __setup(self):
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422 if self.__lines:
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423 return
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424 data = None
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425 for dir in self.__dirs:
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426 for filename in self.__files:
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427 filename = os.path.join(dir, filename)
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428 try:
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429 fp = open(filename, "rU")
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430 data = fp.read()
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431 fp.close()
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432 break
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433 except IOError:
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434 pass
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435 if data:
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436 break
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437 if not data:
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438 data = self.__data
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439 self.__lines = data.split('\n')
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440 self.__linecnt = len(self.__lines)
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441
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442 def __repr__(self):
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443 self.__setup()
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444 if len(self.__lines) <= self.MAXLINES:
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445 return "\n".join(self.__lines)
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446 else:
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447 return "Type %s() to see the full %s text" % ((self.__name,)*2)
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448
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449 def __call__(self):
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450 self.__setup()
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451 prompt = 'Hit Return for more, or q (and Return) to quit: '
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452 lineno = 0
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453 while 1:
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454 try:
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455 for i in range(lineno, lineno + self.MAXLINES):
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456 print(self.__lines[i])
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457 except IndexError:
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458 break
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459 else:
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460 lineno += self.MAXLINES
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461 key = None
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462 while key is None:
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463 try:
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464 key = raw_input(prompt)
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465 except NameError:
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466 key = input(prompt)
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467 if key not in ('', 'q'):
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468 key = None
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469 if key == 'q':
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470 break
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471
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472 def setcopyright():
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473 """Set 'copyright' and 'credits' in __builtin__"""
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474 builtins.copyright = _Printer("copyright", sys.copyright)
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475 if _is_jython:
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476 builtins.credits = _Printer(
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477 "credits",
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478 "Jython is maintained by the Jython developers (www.jython.org).")
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479 elif _is_pypy:
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480 builtins.credits = _Printer(
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481 "credits",
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482 "PyPy is maintained by the PyPy developers: http://pypy.org/")
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483 else:
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484 builtins.credits = _Printer("credits", """\
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485 Thanks to CWI, CNRI, BeOpen.com, Zope Corporation and a cast of thousands
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486 for supporting Python development. See www.python.org for more information.""")
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487 here = os.path.dirname(os.__file__)
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488 builtins.license = _Printer(
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489 "license", "See http://www.python.org/%.3s/license.html" % sys.version,
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490 ["LICENSE.txt", "LICENSE"],
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491 [os.path.join(here, os.pardir), here, os.curdir])
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492
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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493
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494 class _Helper(object):
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495 """Define the built-in 'help'.
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496 This is a wrapper around pydoc.help (with a twist).
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497
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498 """
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499
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500 def __repr__(self):
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501 return "Type help() for interactive help, " \
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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502 "or help(object) for help about object."
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503 def __call__(self, *args, **kwds):
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bcclaywell
parents:
diff changeset
504 import pydoc
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
505 return pydoc.help(*args, **kwds)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
506
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bcclaywell
parents:
diff changeset
507 def sethelper():
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
508 builtins.help = _Helper()
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bcclaywell
parents:
diff changeset
509
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bcclaywell
parents:
diff changeset
510 def aliasmbcs():
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bcclaywell
parents:
diff changeset
511 """On Windows, some default encodings are not provided by Python,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
512 while they are always available as "mbcs" in each locale. Make
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
513 them usable by aliasing to "mbcs" in such a case."""
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
514 if sys.platform == 'win32':
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
515 import locale, codecs
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
516 enc = locale.getdefaultlocale()[1]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
517 if enc.startswith('cp'): # "cp***" ?
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
518 try:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
519 codecs.lookup(enc)
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bcclaywell
parents:
diff changeset
520 except LookupError:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
521 import encodings
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
522 encodings._cache[enc] = encodings._unknown
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
523 encodings.aliases.aliases[enc] = 'mbcs'
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bcclaywell
parents:
diff changeset
524
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bcclaywell
parents:
diff changeset
525 def setencoding():
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
526 """Set the string encoding used by the Unicode implementation. The
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
527 default is 'ascii', but if you're willing to experiment, you can
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
528 change this."""
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
529 encoding = "ascii" # Default value set by _PyUnicode_Init()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
530 if 0:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
531 # Enable to support locale aware default string encodings.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
532 import locale
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
533 loc = locale.getdefaultlocale()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
534 if loc[1]:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
535 encoding = loc[1]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
536 if 0:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
537 # Enable to switch off string to Unicode coercion and implicit
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
538 # Unicode to string conversion.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
539 encoding = "undefined"
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
540 if encoding != "ascii":
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
541 # On Non-Unicode builds this will raise an AttributeError...
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
542 sys.setdefaultencoding(encoding) # Needs Python Unicode build !
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
543
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
544
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
545 def execsitecustomize():
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
546 """Run custom site specific code, if available."""
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
547 try:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
548 import sitecustomize
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
549 except ImportError:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
550 pass
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
551
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
552 def virtual_install_main_packages():
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
553 f = open(os.path.join(os.path.dirname(__file__), 'orig-prefix.txt'))
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
554 sys.real_prefix = f.read().strip()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
555 f.close()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
556 pos = 2
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
557 hardcoded_relative_dirs = []
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
558 if sys.path[0] == '':
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
559 pos += 1
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
560 if _is_jython:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
561 paths = [os.path.join(sys.real_prefix, 'Lib')]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
562 elif _is_pypy:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
563 if sys.version_info > (3, 2):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
564 cpyver = '%d' % sys.version_info[0]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
565 elif sys.pypy_version_info >= (1, 5):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
566 cpyver = '%d.%d' % sys.version_info[:2]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
567 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
568 cpyver = '%d.%d.%d' % sys.version_info[:3]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
569 paths = [os.path.join(sys.real_prefix, 'lib_pypy'),
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
570 os.path.join(sys.real_prefix, 'lib-python', cpyver)]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
571 if sys.pypy_version_info < (1, 9):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
572 paths.insert(1, os.path.join(sys.real_prefix,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
573 'lib-python', 'modified-%s' % cpyver))
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
574 hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
575 #
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
576 # This is hardcoded in the Python executable, but relative to sys.prefix:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
577 for path in paths[:]:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
578 plat_path = os.path.join(path, 'plat-%s' % sys.platform)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
579 if os.path.exists(plat_path):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
580 paths.append(plat_path)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
581 elif sys.platform == 'win32':
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
582 paths = [os.path.join(sys.real_prefix, 'Lib'), os.path.join(sys.real_prefix, 'DLLs')]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
583 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
584 paths = [os.path.join(sys.real_prefix, 'lib', 'python'+sys.version[:3])]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
585 hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
586 lib64_path = os.path.join(sys.real_prefix, 'lib64', 'python'+sys.version[:3])
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
587 if os.path.exists(lib64_path):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
588 if _is_64bit:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
589 paths.insert(0, lib64_path)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
590 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
591 paths.append(lib64_path)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
592 # This is hardcoded in the Python executable, but relative to
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
593 # sys.prefix. Debian change: we need to add the multiarch triplet
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
594 # here, which is where the real stuff lives. As per PEP 421, in
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
595 # Python 3.3+, this lives in sys.implementation, while in Python 2.7
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
596 # it lives in sys.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
597 try:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
598 arch = getattr(sys, 'implementation', sys)._multiarch
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
599 except AttributeError:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
600 # This is a non-multiarch aware Python. Fallback to the old way.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
601 arch = sys.platform
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
602 plat_path = os.path.join(sys.real_prefix, 'lib',
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
603 'python'+sys.version[:3],
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
604 'plat-%s' % arch)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
605 if os.path.exists(plat_path):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
606 paths.append(plat_path)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
607 # This is hardcoded in the Python executable, but
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
608 # relative to sys.prefix, so we have to fix up:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
609 for path in list(paths):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
610 tk_dir = os.path.join(path, 'lib-tk')
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
611 if os.path.exists(tk_dir):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
612 paths.append(tk_dir)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
613
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
614 # These are hardcoded in the Apple's Python executable,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
615 # but relative to sys.prefix, so we have to fix them up:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
616 if sys.platform == 'darwin':
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
617 hardcoded_paths = [os.path.join(relative_dir, module)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
618 for relative_dir in hardcoded_relative_dirs
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
619 for module in ('plat-darwin', 'plat-mac', 'plat-mac/lib-scriptpackages')]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
620
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
621 for path in hardcoded_paths:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
622 if os.path.exists(path):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
623 paths.append(path)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
624
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
625 sys.path.extend(paths)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
626
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627 def force_global_eggs_after_local_site_packages():
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628 """
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629 Force easy_installed eggs in the global environment to get placed
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630 in sys.path after all packages inside the virtualenv. This
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diff changeset
631 maintains the "least surprise" result that packages in the
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632 virtualenv always mask global packages, never the other way
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diff changeset
633 around.
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634
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635 """
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636 egginsert = getattr(sys, '__egginsert', 0)
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637 for i, path in enumerate(sys.path):
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638 if i > egginsert and path.startswith(sys.prefix):
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639 egginsert = i
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640 sys.__egginsert = egginsert + 1
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641
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642 def virtual_addsitepackages(known_paths):
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643 force_global_eggs_after_local_site_packages()
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644 return addsitepackages(known_paths, sys_prefix=sys.real_prefix)
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645
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646 def fixclasspath():
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647 """Adjust the special classpath sys.path entries for Jython. These
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648 entries should follow the base virtualenv lib directories.
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649 """
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650 paths = []
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651 classpaths = []
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652 for path in sys.path:
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653 if path == '__classpath__' or path.startswith('__pyclasspath__'):
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654 classpaths.append(path)
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655 else:
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656 paths.append(path)
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657 sys.path = paths
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658 sys.path.extend(classpaths)
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659
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660 def execusercustomize():
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661 """Run custom user specific code, if available."""
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662 try:
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663 import usercustomize
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664 except ImportError:
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665 pass
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666
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667
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668 def main():
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669 global ENABLE_USER_SITE
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670 virtual_install_main_packages()
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671 abs__file__()
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672 paths_in_sys = removeduppaths()
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673 if (os.name == "posix" and sys.path and
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674 os.path.basename(sys.path[-1]) == "Modules"):
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675 addbuilddir()
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676 if _is_jython:
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677 fixclasspath()
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678 GLOBAL_SITE_PACKAGES = not os.path.exists(os.path.join(os.path.dirname(__file__), 'no-global-site-packages.txt'))
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679 if not GLOBAL_SITE_PACKAGES:
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680 ENABLE_USER_SITE = False
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681 if ENABLE_USER_SITE is None:
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682 ENABLE_USER_SITE = check_enableusersite()
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683 paths_in_sys = addsitepackages(paths_in_sys)
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684 paths_in_sys = addusersitepackages(paths_in_sys)
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685 if GLOBAL_SITE_PACKAGES:
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686 paths_in_sys = virtual_addsitepackages(paths_in_sys)
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687 if sys.platform == 'os2emx':
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688 setBEGINLIBPATH()
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689 setquit()
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690 setcopyright()
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691 sethelper()
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692 aliasmbcs()
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693 setencoding()
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694 execsitecustomize()
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695 if ENABLE_USER_SITE:
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696 execusercustomize()
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697 # Remove sys.setdefaultencoding() so that users cannot change the
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698 # encoding after initialization. The test for presence is needed when
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699 # this module is run as a script, because this code is executed twice.
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700 if hasattr(sys, "setdefaultencoding"):
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701 del sys.setdefaultencoding
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702
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703 main()
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704
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705 def _script():
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706 help = """\
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707 %s [--user-base] [--user-site]
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708
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709 Without arguments print some useful information
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710 With arguments print the value of USER_BASE and/or USER_SITE separated
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bcclaywell
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711 by '%s'.
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712
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713 Exit codes with --user-base or --user-site:
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714 0 - user site directory is enabled
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715 1 - user site directory is disabled by user
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716 2 - uses site directory is disabled by super user
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717 or for security reasons
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718 >2 - unknown error
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719 """
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720 args = sys.argv[1:]
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721 if not args:
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722 print("sys.path = [")
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723 for dir in sys.path:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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724 print(" %r," % (dir,))
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725 print("]")
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726 def exists(path):
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727 if os.path.isdir(path):
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728 return "exists"
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parents:
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729 else:
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730 return "doesn't exist"
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parents:
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731 print("USER_BASE: %r (%s)" % (USER_BASE, exists(USER_BASE)))
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parents:
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732 print("USER_SITE: %r (%s)" % (USER_SITE, exists(USER_BASE)))
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733 print("ENABLE_USER_SITE: %r" % ENABLE_USER_SITE)
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734 sys.exit(0)
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parents:
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735
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parents:
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736 buffer = []
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737 if '--user-base' in args:
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parents:
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738 buffer.append(USER_BASE)
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parents:
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739 if '--user-site' in args:
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parents:
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740 buffer.append(USER_SITE)
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741
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742 if buffer:
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parents:
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743 print(os.pathsep.join(buffer))
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parents:
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744 if ENABLE_USER_SITE:
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parents:
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745 sys.exit(0)
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parents:
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746 elif ENABLE_USER_SITE is False:
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parents:
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747 sys.exit(1)
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parents:
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748 elif ENABLE_USER_SITE is None:
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parents:
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749 sys.exit(2)
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parents:
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750 else:
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751 sys.exit(3)
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parents:
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752 else:
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parents:
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753 import textwrap
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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754 print(textwrap.dedent(help % (sys.argv[0], os.pathsep)))
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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755 sys.exit(10)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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756
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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757 if __name__ == '__main__':
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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758 _script()