Python file and Directory operation example detailed

The examples in this article describe how Python files and directory operations work. Share to everyone for your reference. The specific analysis is as follows:

The operation of files and directories in Python generally involves multiple OS modules, Os.path modules. Specific functions and how to use them are described in the program.

#!/usr/bin/env python#-*-Coding=utf8-*-import osimport Os.path as Opdef change_dir (): "The function shows and changes before the directory using ChDir () to Change present dir getcwd () can show the current working directory "directory="/tmp "#使用getcwd () to return the currently 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 shows only the directory All files using Listdir () to shows all of the file execpt directory join () function catenate ' Whichdir ' with Listdir () return s values isfile () Check that the file is a regular file ' ' #listdir () function displays the contents of the previous directory for the file in Os.listdir (whichdir): # Use Join () to concatenate the Whichdir directory and the Listdir () return value to form a legitimate path file_name = Op.join (whichdir,file) #isfile () function to determine if the file on that path is a normal file if op       . Isfile (file_name): Print file_namedef printaccess (path): "Displays the last accessed time of the file, modified time shows ' path ', in Getatime () Return the time of last access to Path stat () return information of a file,use its st_atime return the TI Me of the last access CTime() return a string of local time ' import time #利用ctime () function returns the last access Times #getatime () function returns the last access times, but in seconds (calculated from the epoch) print T The Ime.ctime (path) #stat () function returns an object that contains the information for the file, stat = os.stat (path) #st_atime The time of the last visit, print time.ctime (stat.st_ Atime) Print the Modify time print "Modify time is:", print time.ctime (path) print "Op.getctime time is:", #s  T_ctime Last Modified time print Time.ctime (stat.st_ctime) def isdir (path): implementation of a Os.path.isdir () function Implement isdir () functions 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 IsD IR (' etc ')

Hopefully this article will help you with Python programming.

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