Python directory and file name operations

1. Operation directory and file name

#!/usr/bin/env python#-*-coding:utf-8-*-import os,reimport shutil Import Time

Search by Listdir

def search_ofd_old (My_pattern, diretory):  try:    names = Os.listdir (diretory)      except Os.error:    print " Error '    return  for name ' in Names:    fullname = Os.path.normpath (Os.path.join (diretory, name))    if Os.path.isfile (FullName):      result = My_pattern.search (name)      if result and Name.lower (). EndsWith ("TXT"):        shutil.copy (FullName, Dest_dir)          elif Os.path.isdir (fullname):      search_ofd (My_pattern, FullName)

Search using the Walk function

def search_ofd (My_pattern, diretory): For  root,dirs,files in Os.walk (diretory): for    filename in files:      result = My_pattern.search (filename)      if result and Filename.lower (). EndsWith ("TXT"):        fullname = Os.path.join ( root, filename)        shutil.copy (FullName, Dest_dir)

Directory does not exist, it is created:

If not Os.path.isdir (dest_dir):  os.makedirs (Dest_dir)

Match Name

Import Repattern = Re.compile ("1ABC") Pattern.search (Var)