def myfunc(x):
y = x
y.append('How do I stop Python from modifying x here?')
return y
x = []
z = myfunc(x)
print(x)
def myfunc(x): y = x y.append(‘How do I stop Python from modifying x here?’)
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def myfunc(x):
y = x
y.append('How do I stop Python from modifying x here?')
return y
x = []
z = myfunc(x)
print(x)
You do:
to make a copy of list
x.