A function to see if one list is a shallow copy of other

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Reference no: EM132942

Question

Modify this function to check to see if one list is a shallow copy of other.

def first_mismatch(lst1, lst2)-
'''(list of objects, list of objects) -> int

Return the index of the first item at which the values of lst1 and lst2
differ. Return -1 if no differences are found.

>>> first_mismatch(['a', 'b', 'c'], ['a', 'd', 'c'])
1
>>> first_mismatch(['a', 'b', 'c'], ['a', 'b', 'c', 'd'])
3
>>> first_mismatch(['a', 'b', [1]], ['a', 'b', [1]])
-1
'''

shorter = min(len(lst1), len(lst2))
for idx in range(shorter):
if lst1[idx] != lst2[idx]:
return idx

if len(lst1) == len(lst2):
return -1

return shorter

Reference no: EM132942

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