python 2.7 check if variable is none
>>> NoneType = type(None)
>>> x = None
>>> type(x) == NoneType
True
>>> isinstance(x, NoneType)
Truepython 2.7 check if variable is none
>>> NoneType = type(None)
>>> x = None
>>> type(x) == NoneType
True
>>> isinstance(x, NoneType)
Truepython variable is not none
if val is not None:
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