"""
This module contains generic exceptions used by template backends. Although,
due to historical reasons, the Django template language also internally uses
these exceptions, other exceptions specific to the DTL should not be added
here.
"""
[文档]class TemplateDoesNotExist(Exception):
"""
The exception used when a template does not exist. Optional arguments:
backend
The template backend class used when raising this exception.
tried
A list of sources that were tried when finding the template. This
is formatted as a list of tuples containing (origin, status), where
origin is an Origin object or duck type and status is a string with the
reason the template wasn't found.
chain
A list of intermediate TemplateDoesNotExist exceptions. This is used to
encapsulate multiple exceptions when loading templates from multiple
engines.
"""
def __init__(self, msg, tried=None, backend=None, chain=None):
self.backend = backend
if tried is None:
tried = []
self.tried = tried
if chain is None:
chain = []
self.chain = chain
super().__init__(msg)
[文档]class TemplateSyntaxError(Exception):
"""
The exception used for syntax errors during parsing or rendering.
"""
pass
