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Change LEDBoard.leds to return a static tuple

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fixes #337
This commit is contained in:
Andrew Scheller
2016-05-28 10:42:49 +01:00
parent b581719c8c
commit 871c9268b2
1 changed files with 10 additions and 7 deletions
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17
gpiozero/boards.py
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@@ -116,19 +116,22 @@ class LEDCollection(CompositeOutputDevice):
LEDClass(pin_or_collection, active_high, initial_value) LEDClass(pin_or_collection, active_high, initial_value)
for name, pin_or_collection in kwargs.items() for name, pin_or_collection in kwargs.items()
}) })
leds = []
for item in self:
if isinstance(item, LEDCollection):
for subitem in item.leds:
leds.append(subitem)
else:
leds.append(item)
self._leds = tuple(leds)
@property @property
def leds(self): def leds(self):
""" """
A flat iterator over all LEDs contained in this collection (and all A flat tuple of all LEDs contained in this collection (and all
sub-collections). sub-collections).
""" """
for item in self: return self._leds
if isinstance(item, LEDCollection):
for subitem in item.leds:
yield subitem
else:
yield item
@property @property
def active_high(self): def active_high(self):