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Why are Python lambdas useful? [closed]
...ions to do stuff. Example:
mult3 = filter(lambda x: x % 3 == 0, [1, 2, 3, 4, 5, 6, 7, 8, 9])
sets mult3 to [3, 6, 9], those elements of the original list that are multiples of 3. This is shorter (and, one could argue, clearer) than
def filterfunc(x):
return x % 3 == 0
mult3 = filter(filterfu...
Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
...y considered as integers in Python 2.6 and 3.
So you're safe until Python 4 comes along. ;-)
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CristianCristian
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....First());.
– AVee
Jun 18 '19 at 13:46
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Python (and Python C API): __new__ versus __init__
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>>> x = (1, 2)
>>> x
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>>> x # tuple.__init__ does nothing
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>>> y = [1, 2]
>>> y
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>>> y.__init__([3, 4])
>>> y # list.__init__ reinitialises the object
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phoenix
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