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Python Functional Python Functional Workhorses Map

Robert Armstrong
Robert Armstrong
4,941 Points
Posted by Robert Armstrong
Robert Armstrong
4,941 Points

Functional Python: Reverse function...

I've run the code included and I get a perfectly reversed version of the original iterable. Additionally, I've tried running this where the function only reverses the items in the iterable, not the order of the items, and it still fails. What am I doing wrong here?

maps.py 
backwards = [
    'tac',
    'esuoheerT',
    'htenneK',
    [5, 4, 3, 2, 1],
]

def reverse(my_iter):
    my_new_iter = copy(my_iter)
    for n in range(0, len(my_iter)):
        reverse_item = my_new_iter[n]
        my_new_iter[n] = reverse_item[::-1]
    return my_new_iter[::-1]

print(backwards)
print(reverse(backwards))

1 Answer

Steven Parker
Steven Parker
230,178 Points
Steven Parker
Steven Parker
230,178 Points

You're probably just getting too fancy. Keep it simple:

def reverse(my_iter):
    return my_iter[::-1]

You were also using copy without first importing it.

Laurens Sandt
Laurens Sandt
3,513 Points
Laurens Sandt
Laurens Sandt
3,513 Points

Thanks for your answer it is exactly what In was looking for