python check if value is undefined
try:
thevariable
except NameError:
print("well, it WASN'T defined after all!")
else:
print("sure, it was defined.")python check if value is undefined
try:
thevariable
except NameError:
print("well, it WASN'T defined after all!")
else:
print("sure, it was defined.")how to check if var exists python
# for local
if 'myVar' in locals():
# myVar exists.
# for globals
if 'myVar' in globals():
# myVar exists.python isset
d = {'foo': 1}
d.get('foo') # 1
d.get('bar') # NoneCopyright © 2021 Codeinu
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