mirrors/django
1
0
Fork 0
mirror of https://github.com/django/django.git synced 2025-10-31 09:41:08 +00:00
Code Issues 32 Releases Wiki Activity

Refs #33476 -- Reformatted code with Black.

Browse Source
This commit is contained in:
django-bot
2022-02-03 20:24:19 +01:00
committed by Mariusz Felisiak
parent f68fa8b45d
commit 9c19aff7c7
1992 changed files with 139577 additions and 96284 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
django/dispatch/dispatcher.py
View File

@@ -4,11 +4,11 @@ import weakref
from django.utils.inspect import func_accepts_kwargs
logger = logging.getLogger('django.dispatch')
logger = logging.getLogger("django.dispatch")
def _make_id(target):
if hasattr(target, '__func__'):
if hasattr(target, "__func__"):
return (id(target.__self__), id(target.__func__))
return id(target)
@@ -28,6 +28,7 @@ class Signal:
receivers
{ receiverkey (id) : weakref(receiver) }
"""
def __init__(self, use_caching=False):
"""
Create a new signal.
@@ -81,10 +82,12 @@ class Signal:
# If DEBUG is on, check that we got a good receiver
if settings.configured and settings.DEBUG:
if not callable(receiver):
raise TypeError('Signal receivers must be callable.')
raise TypeError("Signal receivers must be callable.")
# Check for **kwargs
if not func_accepts_kwargs(receiver):
raise ValueError("Signal receivers must accept keyword arguments (**kwargs).")
raise ValueError(
"Signal receivers must accept keyword arguments (**kwargs)."
)
if dispatch_uid:
lookup_key = (dispatch_uid, _make_id(sender))
@@ -95,7 +98,7 @@ class Signal:
ref = weakref.ref
receiver_object = receiver
# Check for bound methods
if hasattr(receiver, '__self__') and hasattr(receiver, '__func__'):
if hasattr(receiver, "__self__") and hasattr(receiver, "__func__"):
ref = weakref.WeakMethod
receiver_object = receiver.__self__
receiver = ref(receiver)
@@ -164,7 +167,10 @@ class Signal:
Return a list of tuple pairs [(receiver, response), ... ].
"""
if not self.receivers or self.sender_receivers_cache.get(sender) is NO_RECEIVERS:
if (
not self.receivers
or self.sender_receivers_cache.get(sender) is NO_RECEIVERS
):
return []
return [
@@ -191,7 +197,10 @@ class Signal:
If any receiver raises an error (specifically any subclass of
Exception), return the error instance as the result for that receiver.
"""
if not self.receivers or self.sender_receivers_cache.get(sender) is NO_RECEIVERS:
if (
not self.receivers
or self.sender_receivers_cache.get(sender) is NO_RECEIVERS
):
return []
# Call each receiver with whatever arguments it can accept.
@@ -202,7 +211,7 @@ class Signal:
response = receiver(signal=self, sender=sender, **named)
except Exception as err:
logger.error(
'Error calling %s in Signal.send_robust() (%s)',
"Error calling %s in Signal.send_robust() (%s)",
receiver.__qualname__,
err,
exc_info=err,
@@ -217,8 +226,9 @@ class Signal:
if self._dead_receivers:
self._dead_receivers = False
self.receivers = [
r for r in self.receivers
if not(isinstance(r[1], weakref.ReferenceType) and r[1]() is None)
r
for r in self.receivers
if not (isinstance(r[1], weakref.ReferenceType) and r[1]() is None)
]
def _live_receivers(self, sender):
@@ -283,6 +293,7 @@ def receiver(signal, **kwargs):
def signals_receiver(sender, **kwargs):
...
"""
def _decorator(func):
if isinstance(signal, (list, tuple)):
for s in signal:
@@ -290,4 +301,5 @@ def receiver(signal, **kwargs):
else:
signal.connect(func, **kwargs)
return func
return _decorator