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Code Issues 32 Releases Wiki Activity

Refs #33476 -- Reformatted code with Black.

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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
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32
django/dispatch/dispatcher.py
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@@ -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