python展示给定文件的信息

参考：https://github.com/geekcomputers/Python/blob/master/fileinfo.py

方法1 展示给定文件信息

(1) 使用f.readlines() 读取所有行数
(2) 使用os.path.getsize() 获取文件大小（B）

# -*- coding:utf-8 -*-
import os
import sys

def show_file_info(path):
    """ show info for a give file"""
    count = 0
    with open(path) as f:
        for line in f.readlines():
            count = count + 1
    print "count: ", count
    size = os.path.getsize(path)

    file_info = {
        "file_name": path,
        "file_line": count,
        "file_size": size,
    }
    return file_info


def main():
    """ main func """
    path = os.getcwd() + '/thread.py'
    print "path:", path
    file_info = show_file_info(path)
    print "file_info: ", file_info

if __name__ == '__main__':
    main()

测试结果

file_info: {
    'file_name': '/Users/xxx/PycharmProjects/xxx/thread.py',
    'file_line': 23,
    'file_size': 613
}

方法2 优化版本

使用os.stat() 获取用于在给定的路径上执行一个系统 stat 的调用

# -*- coding:utf-8 -*-
import os
import sys
import stat
import time

def show_file_info(path):
    """ show info for a give file"""
    count = 0
    with open(path) as f:
        for line in f.readlines():
            count = count + 1
    print "count: ", count
    statinfo = os.stat(path)
    print "statinfo", statinfo
    print type(statinfo)
    file_info = {
        "file_name": path,
        "file_line": count,
        "file_size": statinfo[stat.ST_SIZE],
        "last_visit_time": statinfo[stat.ST_ATIME],
        "last_modify_time": statinfo[stat.ST_MTIME],
        "unix_time": statinfo[stat.ST_CTIME]
    }
    return file_info


def main():
    """ main func """
    path = os.getcwd() + '/thread.py'
    print "path:", path
    file_info = show_file_info(path)
    print "file_info: ", file_info

if __name__ == '__main__':
    main()

测试结果

file_info: {
    'file_name': '/Users/xxx/PycharmProjects/xxx/thread.py',
    'unix_time': 1574578332,
    'last_modify_time': 1574578332,
    'file_line': 23,
    'file_size': 613,
    'last_visit_time': 1574987036
}