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Fix PEP8 compliance

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This commit is contained in:
Craig Richardson 2018-05-14 21:59:35 +01:00
parent 6d011c02b4
commit e209493de0
1 changed files with 16 additions and 8 deletions
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24
EPROM_Emulator/debouncer.py
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@ -40,8 +40,10 @@ class Debouncer(object):
def __init__(self, pin, mode=None, interval=0.010):
"""Make am instance.
:param int pin: the pin (from board) to debounce
:param int mode: digitalio.Pull.UP or .DOWN (default is no pull up/down)
:param int interval: bounce threshold in seconds (default is 0.010, i.e. 10 milliseconds)
:param int mode: digitalio.Pull.UP or .DOWN (default is no
pull up/down)
:param int interval: bounce threshold in seconds (default is 0.010,
i.e. 10 milliseconds)
"""
self.state = 0x00
self.pin = digitalio.DigitalInOut(pin)
@ -70,7 +72,8 @@ class Debouncer(object):
return (self.state & bits) != 0
def update(self):
"""Update the debouncer state. Must be called before using any of the properties below"""
"""Update the debouncer state. Must be called before using any of
the properties below"""
self.__unset_state(Debouncer.CHANGED_STATE)
current_state = self.pin.value
if current_state != self.__get_state(Debouncer.UNSTABLE_STATE):
@ -78,7 +81,8 @@ class Debouncer(object):
self.__toggle_state(Debouncer.UNSTABLE_STATE)
else:
if time.monotonic() - self.previous_time >= self.interval:
if current_state != self.__get_state(Debouncer.DEBOUNCED_STATE):
debounced_state = self.__get_state(Debouncer.DEBOUNCED_STATE)
if current_state != debounced_state:
self.previous_time = time.monotonic()
self.__toggle_state(Debouncer.DEBOUNCED_STATE)
self.__set_state(Debouncer.CHANGED_STATE)
@ -90,10 +94,14 @@ class Debouncer(object):
@property
def rose(self):
"""Return whether the debounced input went from low to high at the most recent update."""
return self.__get_state(self.DEBOUNCED_STATE) and self.__get_state(self.CHANGED_STATE)
"""Return whether the debounced input went from low to high at
the most recent update."""
return self.__get_state(self.DEBOUNCED_STATE) \
and self.__get_state(self.CHANGED_STATE)
@property
def fell(self):
"""Return whether the debounced input went from high to low at the most recent update."""
return (not self.__get_state(self.DEBOUNCED_STATE)) and self.__get_state(self.CHANGED_STATE)
"""Return whether the debounced input went from high to low at
the most recent update."""
return (not self.__get_state(self.DEBOUNCED_STATE)) \
and self.__get_state(self.CHANGED_STATE)