annotate venv/bin/activate_this.py @ 0:d67268158946 draft

planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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1 """By using execfile(this_file, dict(__file__=this_file)) you will
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2 activate this virtualenv environment.
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3
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4 This can be used when you must use an existing Python interpreter, not
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5 the virtualenv bin/python
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6 """
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7
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8 try:
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9 __file__
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10 except NameError:
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11 raise AssertionError(
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12 "You must run this like execfile('path/to/activate_this.py', dict(__file__='path/to/activate_this.py'))")
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13 import sys
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14 import os
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15
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16 old_os_path = os.environ.get('PATH', '')
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17 os.environ['PATH'] = os.path.dirname(os.path.abspath(__file__)) + os.pathsep + old_os_path
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18 base = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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19 if sys.platform == 'win32':
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20 site_packages = os.path.join(base, 'Lib', 'site-packages')
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21 else:
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22 site_packages = os.path.join(base, 'lib', 'python%s' % sys.version[:3], 'site-packages')
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23 prev_sys_path = list(sys.path)
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24 import site
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25 site.addsitedir(site_packages)
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26 sys.real_prefix = sys.prefix
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27 sys.prefix = base
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28 # Move the added items to the front of the path:
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29 new_sys_path = []
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30 for item in list(sys.path):
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31 if item not in prev_sys_path:
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32 new_sys_path.append(item)
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33 sys.path.remove(item)
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34 sys.path[:0] = new_sys_path