codingdirectional: Reverse a number with Python

In this snippet, we are going to create a python method to reverse the order of a number. This is one of the questions on Codewars. If you enter -123 into the method you will get -321. If you enter 1000 into the method you will get 1. Below is the entire solution.

def reverse_number(n):
    num_list = list(str(n))
    num_list.reverse()

    if "-" in num_list:
        num_list.pop(len(num_list)-1)
        num_list.insert(0, "-")

    return int("".join(num_list))

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