python小技巧汇总

# -*- coding: UTF-8 -*-
#!/usr/bin/env python
def pairwise(iterable):
    """
    交叉形成字典
    """
    itnext = iter(iterable).next
    while True:
        yield itnext(),itnext()

def distinct(seq):
    """
    对序列进行去重
    """
    return dict.fromkeys(L).keys()
    
if __name__ == '__main__':
    L = ["abc","123","def","456"]
    print dict(pairwise(L))
    L = ["abc","123","abc","456"]
    print distinct(L)

增加模块的搜索路径

windows

在C:\Python27\Lib\site-packages下新加一个x.pth

将模块路径写在里面