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Python ÓÐÈ¨ÖØµÄËæ»úÑ¡Ôñ£¬ Weighted Random Choice

import random def windex(lst):
    '''an attempt to make a random.choose() function that makes weighted choices
    accepts a list of tuples with the item and probability as a pair'''
    wtotal = sum([x[1] for x in lst])
   ......

scite python API

'''gen_python_api.py generates a python.api file for SciTE
The generated api file includes
*) all Python keywords
*) all builtin functions
*) all module attributes
Module functions are represented by their docstring if available,
otherwise by the function definition from the source file. ......

Python 3 ½Ì³Ì¶þ:Îļþ,Ŀ¼ºÍ·¾¶

1 ±éÀúÎļþ¼ÐºÍÎļþ
import  os
import  os.path
#  os,os.pathÀï°üº¬´ó¶àÊýÎļþ·ÃÎʵĺ¯Êý,ËùÒÔÒªÏÈÒýÈëËüÃÇ.
#  Çë°´ÕÕÄãµÄʵ¼ÊÇé¿öÐÞ¸ÄÕâ¸ö·¾¶
rootdir  =   " d:/download "
for  parent, dirnames, filenames  in  os.walk(rootdir):
   ......

Python 3 ³õ̽£¬µÚ 2 ²¿·Ö: ¸ß¼¶Ö÷Ìâ

Python 3 ÊÇ Guido van Rossum ¹¦ÄÜÇ¿´óµÄͨÓñà³ÌÓïÑÔµÄ×îа汾¡£ËüËäÈ»´òÆÆÁËÓë 2.x °æ±¾µÄÏòºó¼æÈÝÐÔ£¬µ«È´ÇåÀíÁËijЩÓï·¨·½ÃæµÄÎÊÌâ¡£±¾ÎÄÊÇÕâ¸öÓÉÁ½²¿·Ö×é³ÉµÄϵÁÐÎÄÕÂÖеĵڶþƪ£¬±¾ÎĹ¹½¨ÔÚ´ËϵÁРǰһÆÚÎÄÕ µÄ»ù´¡Ö®ÉÏ£¬ÄÚÈݺ­¸ÇÁË Python ¸ü¶àµÄÐÂÌØÐԺ͸ü¸ßÉîµÄһЩÖ÷Ì⣬±ÈÈçÔÚ³éÏó»ùÀà¡¢ÔªÀàºÍÐÞÊηûµÈ·½ÃæµÄ ......

cÅÌÕûÀí Python½Å±¾

ÄÜÕûÀí´ó²¿·ÖÎÞÓÃÎļþ
#!/usr/bin/python
#syscleaner.py
import os
import os.path
#delete files and directory recursively
def itedel(dir):
print('in dir :'+dir)
for doc in os.listdir(dir):
try:
if(os.path.isdir(doc)):
itedel(dir+'\\'+doc)
......
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