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Preview: exceptions.py Size: 4.32 KB

//lib/python3.6/site-packages/jinja2/exceptions.py

# -*- coding: utf-8 -*-
"""
    jinja2.exceptions
    ~~~~~~~~~~~~~~~~~

    Jinja exceptions.

    :copyright: (c) 2017 by the Jinja Team.
    :license: BSD, see LICENSE for more details.
"""
from jinja2._compat import imap, text_type, PY2, implements_to_string


class TemplateError(Exception):
    """Baseclass for all template errors."""

    if PY2:
        def __init__(self, message=None):
            if message is not None:
                message = text_type(message).encode('utf-8')
            Exception.__init__(self, message)

        @property
        def message(self):
            if self.args:
                message = self.args[0]
                if message is not None:
                    return message.decode('utf-8', 'replace')

        def __unicode__(self):
            return self.message or u''
    else:
        def __init__(self, message=None):
            Exception.__init__(self, message)

        @property
        def message(self):
            if self.args:
                message = self.args[0]
                if message is not None:
                    return message


@implements_to_string
class TemplateNotFound(IOError, LookupError, TemplateError):
    """Raised if a template does not exist."""

    # looks weird, but removes the warning descriptor that just
    # bogusly warns us about message being deprecated
    message = None

    def __init__(self, name, message=None):
        IOError.__init__(self)
        if message is None:
            message = name
        self.message = message
        self.name = name
        self.templates = [name]

    def __str__(self):
        return self.message


class TemplatesNotFound(TemplateNotFound):
    """Like :class:`TemplateNotFound` but raised if multiple templates
    are selected.  This is a subclass of :class:`TemplateNotFound`
    exception, so just catching the base exception will catch both.

    .. versionadded:: 2.2
    """

    def __init__(self, names=(), message=None):
        if message is None:
            message = u'none of the templates given were found: ' + \
                      u', '.join(imap(text_type, names))
        TemplateNotFound.__init__(self, names and names[-1] or None, message)
        self.templates = list(names)


@implements_to_string
class TemplateSyntaxError(TemplateError):
    """Raised to tell the user that there is a problem with the template."""

    def __init__(self, message, lineno, name=None, filename=None):
        TemplateError.__init__(self, message)
        self.lineno = lineno
        self.name = name
        self.filename = filename
        self.source = None

        # this is set to True if the debug.translate_syntax_error
        # function translated the syntax error into a new traceback
        self.translated = False

    def __str__(self):
        # for translated errors we only return the message
        if self.translated:
            return self.message

        # otherwise attach some stuff
        location = 'line %d' % self.lineno
        name = self.filename or self.name
        if name:
            location = 'File "%s", %s' % (name, location)
        lines = [self.message, '  ' + location]

        # if the source is set, add the line to the output
        if self.source is not None:
            try:
                line = self.source.splitlines()[self.lineno - 1]
            except IndexError:
                line = None
            if line:
                lines.append('    ' + line.strip())

        return u'\n'.join(lines)


class TemplateAssertionError(TemplateSyntaxError):
    """Like a template syntax error, but covers cases where something in the
    template caused an error at compile time that wasn't necessarily caused
    by a syntax error.  However it's a direct subclass of
    :exc:`TemplateSyntaxError` and has the same attributes.
    """


class TemplateRuntimeError(TemplateError):
    """A generic runtime error in the template engine.  Under some situations
    Jinja may raise this exception.
    """


class UndefinedError(TemplateRuntimeError):
    """Raised if a template tries to operate on :class:`Undefined`."""


class SecurityError(TemplateRuntimeError):
    """Raised if a template tries to do something insecure if the
    sandbox is enabled.
    """


class FilterArgumentError(TemplateRuntimeError):
    """This error is raised if a filter was called with inappropriate
    arguments
    """

Name	Size	Perms	Modified	Actions
__pycache__ DIR	-	drwxr-xr-x	2025-04-06 18:04:22	Edit Download recursive recursive
asyncfilters.py	4.05 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
asyncsupport.py	7.69 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
bccache.py	12.49 KB	lrw-r--r--	2019-03-19 19:49:57	Edit Download recursive recursive
compiler.py	63.85 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
constants.py	1.59 KB	lrw-r--r--	2019-03-19 19:47:45	Edit Download recursive recursive
debug.py	11.76 KB	lrw-r--r--	2019-03-19 19:47:45	Edit Download recursive recursive
defaults.py	1.37 KB	lrw-r--r--	2019-03-19 19:49:57	Edit Download recursive recursive
environment.py	49.66 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
exceptions.py	4.32 KB	lrw-r--r--	2019-03-19 19:47:45	Edit Download recursive recursive
ext.py	23.93 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
filters.py	36.27 KB	lrw-r--r--	2025-03-31 07:43:47	Edit Download recursive recursive
idtracking.py	8.98 KB	lrw-r--r--	2019-03-19 19:49:57	Edit Download recursive recursive
lexer.py	27.89 KB	lrw-r--r--	2019-03-19 19:49:57	Edit Download recursive recursive
loaders.py	16.97 KB	lrw-r--r--	2019-03-19 19:47:45	Edit Download recursive recursive
meta.py	4.24 KB	lrw-r--r--	2019-03-19 19:47:45	Edit Download recursive recursive
nativetypes.py	7.14 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
nodes.py	30.13 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
optimizer.py	1.68 KB	lrw-r--r--	2019-03-19 19:47:45	Edit Download recursive recursive
parser.py	35.03 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
runtime.py	27.10 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
sandbox.py	17.08 KB	lrw-r--r--	2025-03-31 07:43:47	Edit Download recursive recursive
tests.py	4.14 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
utils.py	20.29 KB	lrw-r--r--	2025-03-31 07:43:47	Edit Download recursive recursive
visitor.py	3.24 KB	lrw-r--r--	2019-03-19 19:47:45	Edit Download recursive recursive
_compat.py	2.54 KB	lrw-r--r--	2019-04-06 17:10:11	Edit Download recursive recursive
_identifier.py	1.69 KB	lrw-r--r--	2019-03-19 19:49:57	Edit Download recursive recursive
__init__.py	2.55 KB	lrw-r--r--	2019-04-06 17:50:57	Edit Download recursive recursive

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