Linux下Python递归文件目录

#!/usr/bin/python3
import os
import sys
def scan(path):
    for x in os.listdir(path):
        newpath = os.path.join(path,x)
        if os.path.isdir(newpath):
            scan(newpath)
        elif os.path.isfile(newpath):
            print(newpath)

def main(argv):
    l = len(sys.argv)
    if l !=2 :
        print("请输入需要遍历的目录!")
        print("usage:<scan filepath>")
        return
    path = sys.argv[1]
    scan(path)

if __name__ == '__main__':
    main(sys.argv[1:])