python check if value is undefined

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showing results for - "python check if value is undefined"
Denice
01 Aug 2017
1try:
2    thevariable
3except NameError:
4    print("well, it WASN'T defined after all!")
5else:
6    print("sure, it was defined.")
7
source
Elona
17 Jul 2019
1# for local
2if 'myVar' in locals():
3  # myVar exists.
4# for globals
5if 'myVar' in globals():
6  # myVar exists.
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