python目录与文件名操作例子

1、操作目录与文件名

    #!/usr/bin/env python
    #-*- coding: utf-8 -*-

    import os,re
    import shutil 
    import time

用listdir搜索

    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)

用walk函数搜索

    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)

目录不存在，则创建：

    if not os.path.isdir(dest_dir):
      os.makedirs(dest_dir)

匹配名称

    import re
    pattern = re.compile("1ABC")
    pattern.search(var)