python读取文件

软著需要拷贝代码行数，用python实现读取指定目录文件，复制给人家申请

# conding=utf8
import os


def all_path(dirname):
    i = 0
    result = []  # 所有的文件
    file_name = 'write.txt'
    for maindir, subdir, file_name_list in os.walk(dirname):
        for filename in file_name_list:
            apath = os.path.join(maindir, filename)  # 合并成一个完整路径
            result.append(apath)
            try:
                with open(apath, encoding='utf8') as f:
                    for line in f.readlines():
                        if (line.isspace() == False):
                            i = i + 1
                            if (i > 8000):
                                break
                            else:
                                # print(line)
                                with open(file_name, 'a+', encoding='utf8') as file_obj:
                                    file_obj.write(line)
            except:
                1
            finally:
                2
    return result


print(all_path("F://gitProject//xxxx//app//src//main//java//xxxxx//ui//"))