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comparison venv/lib/python2.7/site-packages/jinja2/exceptions.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 # -*- coding: utf-8 -*-
2 """
3 jinja2.exceptions
4 ~~~~~~~~~~~~~~~~~
5
6 Jinja exceptions.
7
8 :copyright: (c) 2010 by the Jinja Team.
9 :license: BSD, see LICENSE for more details.
10 """
11 from jinja2._compat import imap, text_type, PY2, implements_to_string
12
13
14 class TemplateError(Exception):
15 """Baseclass for all template errors."""
16
17 if PY2:
18 def __init__(self, message=None):
19 if message is not None:
20 message = text_type(message).encode('utf-8')
21 Exception.__init__(self, message)
22
23 @property
24 def message(self):
25 if self.args:
26 message = self.args[0]
27 if message is not None:
28 return message.decode('utf-8', 'replace')
29
30 def __unicode__(self):
31 return self.message or u''
32 else:
33 def __init__(self, message=None):
34 Exception.__init__(self, message)
35
36 @property
37 def message(self):
38 if self.args:
39 message = self.args[0]
40 if message is not None:
41 return message
42
43
44 @implements_to_string
45 class TemplateNotFound(IOError, LookupError, TemplateError):
46 """Raised if a template does not exist."""
47
48 # looks weird, but removes the warning descriptor that just
49 # bogusly warns us about message being deprecated
50 message = None
51
52 def __init__(self, name, message=None):
53 IOError.__init__(self)
54 if message is None:
55 message = name
56 self.message = message
57 self.name = name
58 self.templates = [name]
59
60 def __str__(self):
61 return self.message
62
63
64 class TemplatesNotFound(TemplateNotFound):
65 """Like :class:`TemplateNotFound` but raised if multiple templates
66 are selected. This is a subclass of :class:`TemplateNotFound`
67 exception, so just catching the base exception will catch both.
68
69 .. versionadded:: 2.2
70 """
71
72 def __init__(self, names=(), message=None):
73 if message is None:
74 message = u'none of the templates given were found: ' + \
75 u', '.join(imap(text_type, names))
76 TemplateNotFound.__init__(self, names and names[-1] or None, message)
77 self.templates = list(names)
78
79
80 @implements_to_string
81 class TemplateSyntaxError(TemplateError):
82 """Raised to tell the user that there is a problem with the template."""
83
84 def __init__(self, message, lineno, name=None, filename=None):
85 TemplateError.__init__(self, message)
86 self.lineno = lineno
87 self.name = name
88 self.filename = filename
89 self.source = None
90
91 # this is set to True if the debug.translate_syntax_error
92 # function translated the syntax error into a new traceback
93 self.translated = False
94
95 def __str__(self):
96 # for translated errors we only return the message
97 if self.translated:
98 return self.message
99
100 # otherwise attach some stuff
101 location = 'line %d' % self.lineno
102 name = self.filename or self.name
103 if name:
104 location = 'File "%s", %s' % (name, location)
105 lines = [self.message, ' ' + location]
106
107 # if the source is set, add the line to the output
108 if self.source is not None:
109 try:
110 line = self.source.splitlines()[self.lineno - 1]
111 except IndexError:
112 line = None
113 if line:
114 lines.append(' ' + line.strip())
115
116 return u'\n'.join(lines)
117
118
119 class TemplateAssertionError(TemplateSyntaxError):
120 """Like a template syntax error, but covers cases where something in the
121 template caused an error at compile time that wasn't necessarily caused
122 by a syntax error. However it's a direct subclass of
123 :exc:`TemplateSyntaxError` and has the same attributes.
124 """
125
126
127 class TemplateRuntimeError(TemplateError):
128 """A generic runtime error in the template engine. Under some situations
129 Jinja may raise this exception.
130 """
131
132
133 class UndefinedError(TemplateRuntimeError):
134 """Raised if a template tries to operate on :class:`Undefined`."""
135
136
137 class SecurityError(TemplateRuntimeError):
138 """Raised if a template tries to do something insecure if the
139 sandbox is enabled.
140 """
141
142
143 class FilterArgumentError(TemplateRuntimeError):
144 """This error is raised if a filter was called with inappropriate
145 arguments
146 """