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Python if defined

How to check if var exists python

# for local
if 'myVar' in locals():
  # myVar exists.
# for globals
if 'myVar' in globals():
  # myVar exists.

5

Source: stackoverflow.com

Python if defined

# None signifies undefined

if x is None:
    some_fallback_operation(  )
else:
    some_operation(x)

0

Source: oreilly.com

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