def get_template(self, template_name, template_dirs=None, skip=None):
"""
Perform the caching that gives this loader its name. Often many of the
templates attempted will be missing, so memory use is of concern here.
To keep it in check, caching behavior is a little complicated when a
template is not found. See ticket #26306 for more details.
With template debugging disabled, cache the TemplateDoesNotExist class
for every missing template and raise a new instance of it after
fetching it from the cache.
With template debugging enabled, a unique TemplateDoesNotExist object
is cached for each missing template to preserve debug data. When
raising an exception, Python sets __traceback__, __context__, and
__cause__ attributes on it. Those attributes can contain references to
all sorts of objects up the call chain and caching them creates a
memory leak. Thus, unraised copies of the exceptions are cached and
copies of those copies are raised after they're fetched from the cache.
"""
key = self.cache_key(template_name, template_dirs, skip)
cached = self.get_template_cache.get(key)
if cached:
if isinstance(cached, type) and issubclass(cached,
TemplateDoesNotExist):
raise cached(template_name)
elif isinstance(cached, TemplateDoesNotExist):
raise copy_exception(cached)
return cached
try:
template = super(Loader, self).get_template(
template_name,
template_dirs,
skip,
)
except TemplateDoesNotExist as e:
self.get_template_cache[key] = copy_exception(
e) if self.engine.debug else TemplateDoesNotExist
raise
else:
self.get_template_cache[key] = template
return template
def get_template(self, template_name, template_dirs=None, skip=None):
"""
Perform the caching that gives this loader its name. Often many of the
templates attempted will be missing, so memory use is of concern here.
To keep it in check, caching behavior is a little complicated when a
template is not found. See ticket #26306 for more details.
With template debugging disabled, cache the TemplateDoesNotExist class
for every missing template and raise a new instance of it after
fetching it from the cache.
With template debugging enabled, a unique TemplateDoesNotExist object
is cached for each missing template to preserve debug data. When
raising an exception, Python sets __traceback__, __context__, and
__cause__ attributes on it. Those attributes can contain references to
all sorts of objects up the call chain and caching them creates a
memory leak. Thus, unraised copies of the exceptions are cached and
copies of those copies are raised after they're fetched from the cache.
"""
key = self.cache_key(template_name, template_dirs, skip)
cached = self.get_template_cache.get(key)
if cached:
if isinstance(cached, type) and issubclass(cached, TemplateDoesNotExist):
raise cached(template_name)
elif isinstance(cached, TemplateDoesNotExist):
raise copy_exception(cached)
return cached
try:
template = super(Loader, self).get_template(
template_name, template_dirs, skip,
)
except TemplateDoesNotExist as e:
self.get_template_cache[key] = copy_exception(e) if self.engine.debug else TemplateDoesNotExist
raise
else:
self.get_template_cache[key] = template
return template
__cause__ attributes on it. Those attributes can contain references to
all sorts of objects up the call chain and caching them creates a
memory leak. Thus, unraised copies of the exceptions are cached and
copies of those copies are raised after they're fetched from the cache.
"""
<<<<<<< HEAD
key = self.cache_key(template_name, template_dirs, skip)
=======
key = self.cache_key(template_name, skip)
>>>>>>> 37c99181c9a6b95433d60f8c8ef9af5731096435
cached = self.get_template_cache.get(key)
if cached:
if isinstance(cached, type) and issubclass(cached, TemplateDoesNotExist):
raise cached(template_name)
elif isinstance(cached, TemplateDoesNotExist):
raise copy_exception(cached)
return cached
try:
<<<<<<< HEAD
template = super(Loader, self).get_template(
template_name, template_dirs, skip,
)
=======
template = super().get_template(template_name, skip)
>>>>>>> 37c99181c9a6b95433d60f8c8ef9af5731096435
except TemplateDoesNotExist as e:
self.get_template_cache[key] = copy_exception(e) if self.engine.debug else TemplateDoesNotExist
raise
else:
self.get_template_cache[key] = template
"""
