effective means to flip boolean values?

[Exsul]

Is there a method or something to easily flip a Boolean value from False to True or vice versa?

[ndc85430]

You use not to do that, obviously.

[perfringo]

ndc85430 idea expressed in code:

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>>> spam = True >>> spam = not spam >>> spam False >>> spam = not spam >>> spam True

Another possibility is to use itertools.cycle(). This is useful, if there are more than two values to flip:

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>>> from itertools import cycle >>> switch = cycle([True, False]).__next__ >>> spam = switch() >>> spam True >>> spam = switch() >>> spam False >>> spam = switch() >>> spam True >>> switch = cycle(['ON', 'STANDBY', 'OFF']).__next__ >>> spam = switch() >>> spam 'ON' >>> spam = switch() >>> spam 'STANDBY' >>> spam = switch() >>> spam 'OFF' >>> spam = switch() >>> spam 'ON'

[Exsul]

ndc85430 idea expressed in code:

1 2 3 4 5 6 7

>>> spam = True >>> spam = not spam >>> spam False >>> spam = not spam >>> spam True

Another possibility is to use itertools.cycle(). This is useful, if there are more than two values to flip:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

>>> from itertools import cycle >>> switch = cycle([True, False]).__next__ >>> spam = switch() >>> spam True >>> spam = switch() >>> spam False >>> spam = switch() >>> spam True >>> switch = cycle(['ON', 'STANDBY', 'OFF']).__next__ >>> spam = switch() >>> spam 'ON' >>> spam = switch() >>> spam 'STANDBY' >>> spam = switch() >>> spam 'OFF' >>> spam = switch() >>> spam 'ON'

Thank you! That looks super useful!