annotate env/lib/python3.7/site-packages/jinja2/exceptions.py @ 0:26e78fe6e8c4 draft

"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 # -*- coding: utf-8 -*-
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2 from ._compat import imap
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3 from ._compat import implements_to_string
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4 from ._compat import PY2
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5 from ._compat import text_type
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6
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7
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8 class TemplateError(Exception):
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9 """Baseclass for all template errors."""
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10
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11 if PY2:
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12
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13 def __init__(self, message=None):
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14 if message is not None:
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15 message = text_type(message).encode("utf-8")
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16 Exception.__init__(self, message)
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17
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18 @property
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19 def message(self):
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20 if self.args:
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21 message = self.args[0]
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22 if message is not None:
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23 return message.decode("utf-8", "replace")
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24
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25 def __unicode__(self):
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26 return self.message or u""
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27
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28 else:
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29
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30 def __init__(self, message=None):
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31 Exception.__init__(self, message)
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32
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33 @property
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34 def message(self):
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35 if self.args:
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36 message = self.args[0]
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37 if message is not None:
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38 return message
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39
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40
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41 @implements_to_string
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42 class TemplateNotFound(IOError, LookupError, TemplateError):
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43 """Raised if a template does not exist.
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44
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45 .. versionchanged:: 2.11
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46 If the given name is :class:`Undefined` and no message was
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47 provided, an :exc:`UndefinedError` is raised.
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48 """
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49
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50 # looks weird, but removes the warning descriptor that just
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51 # bogusly warns us about message being deprecated
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52 message = None
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53
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54 def __init__(self, name, message=None):
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55 IOError.__init__(self, name)
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56
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57 if message is None:
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58 from .runtime import Undefined
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59
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60 if isinstance(name, Undefined):
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61 name._fail_with_undefined_error()
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62
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63 message = name
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64
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65 self.message = message
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66 self.name = name
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67 self.templates = [name]
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68
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69 def __str__(self):
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70 return self.message
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71
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72
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73 class TemplatesNotFound(TemplateNotFound):
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74 """Like :class:`TemplateNotFound` but raised if multiple templates
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75 are selected. This is a subclass of :class:`TemplateNotFound`
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76 exception, so just catching the base exception will catch both.
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77
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78 .. versionchanged:: 2.11
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79 If a name in the list of names is :class:`Undefined`, a message
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80 about it being undefined is shown rather than the empty string.
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81
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82 .. versionadded:: 2.2
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83 """
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84
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85 def __init__(self, names=(), message=None):
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86 if message is None:
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87 from .runtime import Undefined
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88
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89 parts = []
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90
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91 for name in names:
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92 if isinstance(name, Undefined):
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93 parts.append(name._undefined_message)
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94 else:
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95 parts.append(name)
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96
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97 message = u"none of the templates given were found: " + u", ".join(
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98 imap(text_type, parts)
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99 )
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100 TemplateNotFound.__init__(self, names and names[-1] or None, message)
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101 self.templates = list(names)
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102
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103
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104 @implements_to_string
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105 class TemplateSyntaxError(TemplateError):
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106 """Raised to tell the user that there is a problem with the template."""
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107
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108 def __init__(self, message, lineno, name=None, filename=None):
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109 TemplateError.__init__(self, message)
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110 self.lineno = lineno
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111 self.name = name
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112 self.filename = filename
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113 self.source = None
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114
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115 # this is set to True if the debug.translate_syntax_error
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116 # function translated the syntax error into a new traceback
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117 self.translated = False
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118
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119 def __str__(self):
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120 # for translated errors we only return the message
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121 if self.translated:
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122 return self.message
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123
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124 # otherwise attach some stuff
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125 location = "line %d" % self.lineno
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126 name = self.filename or self.name
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127 if name:
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128 location = 'File "%s", %s' % (name, location)
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129 lines = [self.message, " " + location]
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130
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131 # if the source is set, add the line to the output
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132 if self.source is not None:
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133 try:
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134 line = self.source.splitlines()[self.lineno - 1]
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135 except IndexError:
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136 line = None
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137 if line:
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138 lines.append(" " + line.strip())
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139
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140 return u"\n".join(lines)
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141
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142 def __reduce__(self):
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143 # https://bugs.python.org/issue1692335 Exceptions that take
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144 # multiple required arguments have problems with pickling.
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145 # Without this, raises TypeError: __init__() missing 1 required
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146 # positional argument: 'lineno'
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147 return self.__class__, (self.message, self.lineno, self.name, self.filename)
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148
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149
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150 class TemplateAssertionError(TemplateSyntaxError):
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151 """Like a template syntax error, but covers cases where something in the
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152 template caused an error at compile time that wasn't necessarily caused
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153 by a syntax error. However it's a direct subclass of
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154 :exc:`TemplateSyntaxError` and has the same attributes.
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155 """
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156
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157
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158 class TemplateRuntimeError(TemplateError):
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159 """A generic runtime error in the template engine. Under some situations
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160 Jinja may raise this exception.
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161 """
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162
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163
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164 class UndefinedError(TemplateRuntimeError):
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165 """Raised if a template tries to operate on :class:`Undefined`."""
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166
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167
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168 class SecurityError(TemplateRuntimeError):
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169 """Raised if a template tries to do something insecure if the
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170 sandbox is enabled.
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171 """
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172
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173
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174 class FilterArgumentError(TemplateRuntimeError):
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175 """This error is raised if a filter was called with inappropriate
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176 arguments
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177 """