【干货】50 个常用的 Python 库和示例代码 通过分析 github 上 5000 个开源 python 项目，找出了最常用的库，下表是最常用的前 50 个。括号里的数字代表其出现的次数。 序号 库 链接 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 os (2810) sys (2563) re (1986) time (1478) http://www.programcreek.com/python/index/1/os http://www.programcreek.com/python/index/2/sys http://www.programcreek.com/python/index/3/re http://www.programcreek.com/python/index/4/time logging (1080) http://www.programcreek.com/python/index/5/logging datetime (1032) http://www.programcreek.com/python/index/6/datetime unittest (960) random (891) urllib (776) os.path (723) string (659) math (560) socket (556) types (548) http://www.programcreek.com/python/index/7/unittest http://www.programcreek.com/python/index/8/random http://www.programcreek.com/python/index/9/urllib http://www.programcreek.com/python/index/10/os.path http://www.programcreek.com/python/index/11/string http://www.programcreek.com/python/index/12/math http://www.programcreek.com/python/index/13/socket http://www.programcreek.com/python/index/14/types subprocess (529) http://www.programcreek.com/python/index/15/subprocess tempfile (492) http://www.programcreek.com/python/index/16/tempfile shutil (484) http://www.programcreek.com/python/index/17/shutil 

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 threading (475) http://www.programcreek.com/python/index/18/threading traceback (473) http://www.programcreek.com/python/index/19/traceback urllib2 (472) http://www.programcreek.com/python/index/20/urllib2 copy (455) cgi (425) struct (420) http://www.programcreek.com/python/index/21/copy http://www.programcreek.com/python/index/22/cgi http://www.programcreek.com/python/index/23/struct warnings (412) http://www.programcreek.com/python/index/24/warnings base64 (398) urlparse (377) codecs (365) itertools (328) glob (322) inspect (310) operator (309) StringIO (304) errno (302) http://www.programcreek.com/python/index/25/base64 http://www.programcreek.com/python/index/26/urlparse http://www.programcreek.com/python/index/27/codecs http://www.programcreek.com/python/index/28/itertools http://www.programcreek.com/python/index/29/glob http://www.programcreek.com/python/index/30/inspect http://www.programcreek.com/python/index/31/operator http://www.programcreek.com/python/index/32/StringIO http://www.programcreek.com/python/index/33/errno optparse (298) http://www.programcreek.com/python/index/34/optparse hashlib (288) httplib (271) json (269) pickle (251) signal (248) getopt (236) http://www.programcreek.com/python/index/35/hashlib http://www.programcreek.com/python/index/36/httplib http://www.programcreek.com/python/index/37/json http://www.programcreek.com/python/index/38/pickle http://www.programcreek.com/python/index/39/signal http://www.programcreek.com/python/index/40/getopt 

41 42 43 44 45 46 47 48 49 50 csv (218) http://www.programcreek.com/python/index/41/csv mimetypes (205) http://www.programcreek.com/python/index/42/mimetypes ConfigParser (202) http://www.programcreek.com/python/index/43/ConfigParser settings (198) http://www.programcreek.com/python/index/44/settings simplejson (197) http://www.programcreek.com/python/index/45/simplejson gtk (188) imp (183) pprint (178) zipfile (174) http://www.programcreek.com/python/index/46/gtk http://www.programcreek.com/python/index/47/imp http://www.programcreek.com/python/index/48/pprint http://www.programcreek.com/python/index/49/zipfile textwrap (170) http://www.programcreek.com/python/index/50/textwrap