KevinMidboe/python-gpiozero
1
0
Fork 0
mirror of https://github.com/KevinMidboe/python-gpiozero.git synced 2025-10-29 17:50:37 +00:00
Code Issues Packages Projects Releases Wiki Activity

Tidying up...

Browse Source 
Dunno how many commits this PR is now!
This commit is contained in:
Dave Jones
2016-10-22 16:02:27 +01:00
parent b59af7a08f
commit d3c55d25a4
2 changed files with 13 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
gpiozero/pins/pi.py
View File

@@ -224,24 +224,22 @@ class PiPin(Pin):
return self._when_changed
def _set_when_changed(self, value):
# Have to take care, if value is either a closure or a bound method,
# not to keep a strong reference to the containing object
with self._when_changed_lock:
if self._when_changed is None and value is not None:
if value is None:
if self._when_changed is not None:
self._disable_event_detect()
self._when_changed = None
else:
enabled = self._when_changed is not None
# Have to take care, if value is either a closure or a bound
# method, not to keep a strong reference to the containing
# object
if isinstance(value, MethodType):
self._when_changed = WeakMethod(value)
else:
self._when_changed = ref(value)
self._enable_event_detect()
elif self._when_changed is not None and value is None:
self._disable_event_detect()
self._when_changed = None
elif value is None:
self._when_changed = None
elif isinstance(value, MethodType):
self._when_changed = WeakMethod(value)
else:
self._when_changed = ref(value)
if not enabled:
self._enable_event_detect()
def _enable_event_detect(self):
raise NotImplementedError