移除几个目录下同名但size小的文件

photo_clean.py

#!/usr/bin/env python
#encoding=utf-8


import os
import os.path


"""
指定目录下只留下最大的文件，小一点的复制文件删除
"""
def keep_max(paths):
    size_map = {}
    for path in paths:
        for filename in os.listdir(path):
            file_path = os.path.join(path, filename)
            size = os.stat(file_path).st_size
            # print file_path, filename, size
            if filename in size_map:
                fp, s = size_map.get(filename)
                if s > size:
                    print 'sfuck', file_path, fp, size, s
                    os.remove(file_path)
                elif s == size:
                    print "same", file_path, fp, size
                    os.remove(file_path)
                else:
                    print 'lfuck', file_path, fp, size, s
                    os.remove(fp)
                    size_map[filename] = (file_path, size)
            else:
                size_map[filename] = (file_path, size)


if __name__ == "__main__":
    paths = ["/Users/vivia/photo/image1/", "/Users/vivia/photo/image2/", "/Users/vivia/photo/image3/"]
    keep_max(paths)