Python file and directory operation examples detailed

The examples in this article describe the Python file and directory operations methods. Share to everyone for your reference. The specific analysis is as follows:

The operation of files and directories in Python typically involves multiple OS modules, Os.path modules. Specific functions and how they are used are described in the program.

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#!/usr/bin/env python #-*-coding=utf8-*-import os import Os.path As Op def change_dir (): "The function displays and changes the previous directory using ChDir () to the Change current dir getcwd () can show the current working Directo Ry ' directory= '/tmp #使用getcwd () returns the current directory print OS.GETCWD () #chdir改变当前目录为: Directory directory os.chdir (directory) print OS.GETCWD () def show_filesofdir (Whichdir): "This function only shows all files under the directory using Listdir () to shows all of the file execpt directory Jo In () function catenate ' Whichdir ' and Listdir () returns values Isfile () Check that the file is a regular file ' #listdir () The function displays the contents of the previous directory for file in Os.listdir (whichdir): #利用join () joins the Whichdir directory and the Listdir () return value to form a legal path file_name = Op.join (Whichdir, File) #isfile () function to determine whether the files on the path are a normal file If Op.isfile (file_name): print file_name def printaccess (path): ' Displays the last accessed time of the file, the modified time shows ' path ' to the end of access times GE Tatime () Return to the time of last access to Path stat () return information of a file,use it st_atime return the time of LA St Access CTime () return a string "Import Time" #利用ctime () function returns the last access #getatime () function returns the last access time, but in seconds (from the New Age The Print time.ctime (op.getatime (path)) #stat () function returns an object containing information stat = os.stat (path) #st_atime last accessed time print time.ctime ( Stat.st_atime) Print the Modify time print "Modify", Print Time.ctime (op.getctime (path)) print "Modify time is:", #st_ctime Last Modified time print Time.ctime (stat.st_ctime) def isdir (path): ' Implementation of a os.path.isdir () function implement Isdir () functi On by myself ' "Import stat MODE = Os.stat (path). St_mode #返回真假值 return Stat. S_isdir (MODE) if __name__== "__main__": Change_dir () show_filesofdir ('/root ') printaccess ('/etc/passwd ') print Isdir ('/etc ')

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