Il 15/12/2020 18:07, Mark Polesky ha scritto:
Hi.
# Running this script....
D = {'a':1}
def get_default():
print('Nobody expects this')
return 0
print(D.get('a', get_default()))
# ...generates this output:
Nobody expects this
1
###
Since I'm brand new to this community, I thought I'd ask here first... Is this
worthy of a bug report? This behavior is definitely unexpected to me, and I
accidentally coded an endless loop in a mutual recursion situation because of
it. Calling dict.get.__doc__ only gives this short sentence: Return the value
for key if key is in the dictionary, else default. Nothing in that docstring
suggests that the default value is evaluated even if the key exists, and I
can't think of any good reason to do so.
Am I missing something?
Thanks,
Mark
print(_ if d.get('a', None) is not None else get_default())
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