A script to recursively generate permutations in lexicographic order

perms.py

#!/usr/bin/python3

def generate_permutations(sequence):
    if len(sequence)==1:
        yield sequence
    elif len(sequence)>1:
        for index, item in enumerate(sequence):
            for perm in generate_permutations(sequence[:index]+sequence[index+1:]):
                yield [item]+perm

if __name__=="__main__":
    from sys import argv
    total=int(argv[-1])
    seq=list(range(total))
    for i in generate_permutations(seq):
        print(i)