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vikjam/example.py

Created January 30, 2021 01:05
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Python mutable default arguments
Raw
example.py
l = ["m"]
def return_list(lst=l):
return(f"lst={lst} and l={l}")
l.append("n")
print(return_list()) # lst=['m', 'n'] and l=['m', 'n']
print(return_list(lst=l)) # lst=['m', 'n'] and l=['m', 'n']
l = ["n"]
print(return_list()) # lst=['m', 'n'] and l=['n']
print(return_list(lst=l)) # lst=['n'] and l=['n']
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