29.11.17 14:39, Nick Coghlan пише:
"a if def else b" -> pronounced "a if defined, else b"
I understand "a if defined, else b" as
try:
result = a
except (NameError, AttributeError, LookupError):
result = b
The problem is that None is not undefined. This is a regular value.
Seems it is not so special in Python as NULL or undef in other
languages. Python even don't have a special purposed
NullPointerException (or NoneError).
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