How to replace the file name and content in a folder with python

This article introduces how to replace the file name and file content in a folder with python. The example shows the effect:

1. replace the name of the folder and subfolders in a folder from OldStrDir to NewStrDir;

2. replace the names of folders in a folder and all files in subfolders with OldStrFile to NewStrFile;

3. replace the contents of folders in a folder and all files in subfolders with OldStrContent changed to NewStrContent;

Code:

# -*- coding: UTF-8 -*-import osimport re#replace dir namedef replaceDirName(rootDir,oldStr,newStr):    for parent,dirNames,fileNames in os.walk(rootDir,topdown=False):        for dirName in dirNames:            if oldStr in dirName:                dirNameOld = os.path.join(parent,dirName)                dirNameNew = os.path.join(parent,dirName.replace(oldStr,newStr))                print(dirNameOld  + ' --> ' +  dirNameNew)                os.rename(dirNameOld,dirNameNew)                        #replace file namedef replaceFileName(rootDir,oldStr,newStr):    for parent,dirNames,fileNames in os.walk(rootDir):        for fileName in fileNames:            if oldStr in fileName:                fileNameOld = os.path.join(parent,fileName)                fileNameNew =  os.path.join(parent,fileName.replace(oldStr,newStr))                print(fileNameOld  + ' --> ' +  fileNameNew)                os.rename(fileNameOld,fileNameNew)            #replace file content namedef replaceFileContent(rootDir,oldStr,newStr):    for parent,dirNames,fileNames in os.walk(rootDir):        for fileName in fileNames:            fileObj = os.path.join(parent,fileName)            f = open(fileObj,'r+')            all_the_lines=f.readlines()            f.seek(0)            f.truncate()            for line in all_the_lines:                f.write(line.replace(oldStr,newStr))                f.close()  def main():    rootDir = "D:/D"    oldStr = "CustomerType"    newStr = "CustomerAttr"    replaceDirName(rootDir,oldStr,newStr)    replaceFileName(rootDir,oldStr,newStr)    replaceFileContent(rootDir,oldStr,newStr)if __name__=='__main__':    main()

The above describes how to replace the file name and file content in the folder with python. For more information, see other related articles in the first PHP community!