python必须要知道的库是什么

github 上 follower 大于 500 的 python repo

https://github.com/search?q=followers%3A%3E500&p=1&ref=searchbar&type=Repositories&l=Python

标准库。

标准库的os，sys

__builtin__

requests
sh

个人网络整理，仅作参考：
[标准库]
argparse, copy, datetime, decimal, fnmatch, functools, glob, heapq, inspect, itertools, json, logging, math, operator, os, os.path, pickle, random, re, shutil, sqlite3, StringIO, subprocess, sys, tempfile, threading, time, urllib2, weakref, wsgiref, xml.dom, xml.sax
[外部库] 按个人兴趣自由选择
=== Graphical interface ===
wxPython http://wxpython.org
pyGtk http://www.pygtk.org
pyQT http://www.riverbankcomputing.co.uk/pyqt/
Pmw http://pmw.sourceforge.net/
Tkinter 3000 http://effbot.org/zone/wck.htm
Tix http://tix.sourceforge.net/

=== Database ===
MySQLdb http://sourceforge.net/projects/mysql-python
PyGreSQL http://www.pygresql.org/
Gadfly http://gadfly.sourceforge.net/
SQLAlchemy http://www.sqlalchemy.org/
psycopg http://www.initd.org/pub/software/psycopg/
kinterbasdb http://kinterbasdb.sourceforge.net/
cx_Oracle http://www.cxtools.net/default.aspx?nav=downloads
pySQLite http://initd.org/tracker/pysqlite

=== MSN Messenger ===
msnlib http://auriga.wearlab.de/~alb/msnlib/
pymsn http://telepathy.freedesktop.org/wiki/Pymsn
msnp http://msnp.sourceforge.net/

=== Network ===
Twisted http://twistedmatrix.com/

=== Images ===
PIL http://www.pythonware.com/products/pil/
gdmodule http://newcenturycomputers.net/projects/gdmodule.html
VideoCapture http://videocapture.sourceforge.net/

=== Sciences and Maths ===
scipy http://www.scipy.org/
NumPy http://numpy.scipy.org//
numarray http://www.stsci.edu/resources/software_hardware/numarray
matplotlib http://matplotlib.sourceforge.net/

=== Games ===
Pygame http://www.pygame.org/news.html
Pyglet http://www.pyglet.org/
PySoy http://www.pysoy.org/
pyOpenGL http://pyopengl.sourceforge.net/

=== Jabber ===
jabberpy http://jabberpy.sourceforge.net/

=== Web ===
scrape http://zesty.ca/python/scrape.html
Beautiful Soup http://crummy.com/software/BeautifulSoup
pythonweb http://www.pythonweb.org/
mechanize http://wwwsearch.sourceforge.net/mechanize/

=== Localisation ===
geoname.py http://www.zindep.com/blog-zindep/Geoname-python/

=== Serial port ===
pySerial http://pyserial.sourceforge.net/
USPP http://ibarona.googlepages.com/uspp

=== Parallel Port ===
pyParallel http://pyserial.sourceforge.net/pyparallel.html

=== USB Port ===
pyUSB http://bleyer.org/pyusb/

=== Windows ===
ctypes http://starship.python.net/crew/theller/ctypes/
pywin32 http://sourceforge.net/projects/pywin32/
pywinauto http://www.openqa.org/pywinauto/
pyrtf http://pyrtf.sourceforge.net/
wmi http://timgolden.me.uk/python/wmi.html

=== PDA/GSM/Mobiles ===
pymo http://www.awaretek.com/pymo.html
pyS60 http://sourceforge.net/projects/pys60

=== Sound ===
pySoundic http://pysonic.sourceforge.net/
pyMedia http://pymedia.org/
FMOD http://www.fmod.org/
pyMIDI http://www.cs.unc.edu/Research/assist/developer.shtml

=== Others ===
[GMail] libgmail http://libgmail.sourceforge.net/
[Google] pyGoogle http://pygoogle.sourceforge.net/
[Expect] pyExpect http://pexpect.sourceforge.net/
[WordNet] pyWordNet http://osteele.com/projects/pywordnet/
[Command line] cmd http://blog.doughellmann.com/2008/05/pymotw-cmd.html
[Compiler backend] llvm-py http://mdevan.nfshost.com/llvm-py/
[3D] VPython http://vpython.org

补充下，对于一些特别有名的库像django之类的，就不作提及了；新的库每天都在增加，自己去淘吧。

求这样的列表有意义么，难道你打算去把他们的手册都背一次。。。

@BOYPT 可以用来做技术选型参考，不过我更喜欢这个

http://docs.python-guide.org/en/latest/

都没人问问楼主用 Python 主要是干嘛么.... 我来!

不如改成 python有哪些杀手级的库，我个人比较推崇的是twisted, tornado, gevent ,sqlalchemy 觉得每个学python的都需要了解一下

@jjx twisted越来越不被推荐啊， 都说gevent简单好用

@tarsier twisted和gevent两种思维，我喜欢直接的，没有隐藏，gevent太多magic ,而且对windows 支持也不够好

@jjx twisted的思维实在是太twisted了。。。

@tarsier 其实对于twisted本身支持的协议，写法并非传言那样可怕，风格是template method式的.deferred回避不了了，比方说你用nodejs时，思维过了就过了，不过，就一直惧怕

谢谢大家啊。这个新年又有东西看了！！！