python 文件过滤器
python实用技巧 : Filtering os.walk'''
Created on Mar 7, 2010
@author: Diego
需求: 得到某个目录下, 符合过滤条件的文件夹/文件.
实现: 将os.walk再次包装.
TODO: 不知道本程序的做法, 和传统的逐个目录列举的方法, 哪个效率更高. 待测试.
'''
import os
import os.path
os.path.sep = " / "
path = " /media/dev/project/google_codes/srgjs "
EXCLUDE_DIR_LIST = [ " .SVN " , " CVS " ]
EXCLUDE_FILE_LIST = [ " .CVSIGNORE " ]
def is_parent_exclude(parentPath,excludeDirList):
ss = parentPath.split( " / " );
for s in ss:
if (s.upper() in excludeDirList):
return True
return False
def filter_walk(targetDirectory,excludeDirList,excludeFileExtList):
dirList = []
fileList = []
for (parent, dirs, files) in os.walk(targetDirectory):
for d in dirs:
if (d.upper() in excludeDirList):
continue
# To check if one of the parent dir should be excluded.
if (is_parent_exclude(parent,excludeDirList)):
continue
dirList.append(parent + " / " + d)
for f in files:
if (f.upper() in excludeFileExtList):
continue
# To check if one of the parent dir should be excluded.
if (is_parent_exclude(parent,excludeDirList)):
continue
fileList.append(parent + " / " + f)
return (dirList,fileList)
# test
dirs,files = filter_walk(path,EXCLUDE_DIR_LIST,EXCLUDE_FILE_LIST)
for d in dirs:
print d
for f in files:
print f
转自：http://reader.youdao.com/sharelite?itemId=3844466130777511435&method=viewSharedItemThroughLink&sharedBy=-1137845767117085734
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