Loop through files to find content

#!/opt/anaconda3/bin/python
# -*- coding: UTF-8 -*-
import os
import sys

def show_files(path, all_files):
    # 首先遍历当前目录所有文件及文件夹
    file_list = os.listdir(path)
    # 准备循环判断每个元素是否是文件夹还是文件，是文件的话，把名称传入list，是文件夹的话，递归
    for file in file_list:
        # 利用os.path.join()方法取得路径全名，并存入cur_path变量，否则每次只能遍历一层目录
        cur_path = os.path.join(path, file)
        # 判断是否是文件夹
        if os.path.isdir(cur_path):
            show_files(cur_path, all_files)
        elif file.find(".m") >= 0:
            all_files.append(cur_path)
    return all_files

def handleTableViewCellContentAddSubview(file_path):
    f = open(str(file_path))
    file = f.readlines()
    lineNumber = 0
    x = 0
    y = 0
    for line_item in file:
        lineNumber = lineNumber + 1
        if 'initWithStyle:' in line_item:
            x = lineNumber
        if '[self addSubview:' in line_item:
            y = lineNumber
    if x > 0 and y > 0:
        print("find the add subtview content")
        print(file_path + " inline:[" + str(y) + "]")
        print("##################################################")
    f.close()

# 传入空的list接收文件名
contents = show_files("/Users/zhangyuqing/Desktop/zuche/wccgeneralui", [])
# 循环打印show_files函数返回的文件名列表
for content in contents:
    handleTableViewCellContentAddSubview(content)