一個不錯的搜索Example的網站：http://www.programcreek.com/python/

通過分析github上5000個開源python項目，找出最常用的庫。下面是前670個。括號里的數字代表出現的頻率，最大為5000。

1.os?(2810)

2.sys?(2563)

3.re?(1986)

4.time?(1478)

5.logging?(1080)

6.datetime?(1032)

7.unittest?(960)

8.random?(891)

9.urllib?(776)

10.os.path?(723)

11.string?(659)

12.math?(560)

13.socket?(556)

14.types?(548)

15.subprocess?(529)

16.tempfile?(492)

17.shutil?(484)

18.threading?(475)

19.traceback?(473)

20.urllib2?(472)

21.copy?(455)

22.cgi?(425)

23.struct?(420)

24.warnings?(412)

25.base64?(398)

26.urlparse?(377)

27.codecs?(365)

28.itertools?(328)

29.glob?(322)

30.inspect?(310)

31.operator?(309)

32.StringIO?(304)

33.errno?(302)

34.optparse?(298)

35.hashlib?(288)

36.httplib?(271)

37.json?(269)

38.pickle?(251)

39.signal?(248)

40.getopt?(236)

41.csv?(218)

42.mimetypes?(205)

43.ConfigParser?(202)

44.settings?(198)

45.simplejson?(197)

46.gtk?(188)

47.imp?(183)

48.pprint?(178)

49.zipfile?(174)

50.textwrap?(170)

51.hmac?(168)

52.uuid?(167)

53.stat?(166)

54.numpy?(165)

55.weakref?(164)

56.fnmatch?(163)

57.locale?(158)

58.binascii?(157)

59.calendar?(156)

60.cStringIO?(154)

61.django?(153)

62.md5?(152)

63.getpass?(151)

64.thread?(151)

65.select?(147)

66.Queue?(143)

67.platform?(138)

68.gobject?(133)

69.gzip?(133)

70.config?(130)

71.collections?(130)

72.doctest?(127)

73.utils?(124)

74.smtplib?(124)

75.__builtin__?(123)

76.cPickle?(123)

77.commands?(121)

78.yaml?(118)

79.xmlrpclib?(117)

80.atexit?(114)

81.zlib?(111)

82.functools?(110)

83.pkg_resources?(110)

84.gettext?(109)

85.util?(106)

86.sqlite3?(102)

87.decimal?(102)

88.array?(101)

89.sgmllib?(100)

90.cgitb?(100)

91.posixpath?(100)

92.wsgiref.handlers?(98)

93.gc?(95)

94.sha?(90)

95.pdb?(90)

96.unicodedata?(90)

97.tarfile?(88)

98.ctypes?(88)

99.models?(87)

100.htmlentitydefs?(86)

101.pygtk?(84)

102.exceptions?(83)

103.Image?(81)

104.new?(78)

105.rfc822?(78)

106.pygame?(77)

107.wx?(77)

108.MySQLdb?(76)

109.feedparser?(74)

110.difflib?(73)

111.asyncore?(72)

112.shlex?(72)

113.Cookie?(69)

114.matplotlib?(68)

115.argparse?(68)

116.marshal?(65)

117.__future__?(64)

118.email?(63)

119.bisect?(62)

120.shelve?(62)

121.pstats?(61)

122.BaseHTTPServer?(60)

123.nose?(59)

124.webbrowser?(59)

125.fcntl?(59)

126.tokenize?(58)

127.tagging?(25)

196.psycopg2?(25)

197.atom?(25)

198.oauth?(25)

199.filecmp?(25)

200.dis?(25)

201.glib?(24)

202.logging.config?(23)

203.appengine_django?(23)

204.gdata?(23)

205.gst?(23)

206.fields?(23)

207.requests?(22)

208.ops?(22)

209.cryptomath?(22)

210.testdata?(22)

211.gdata.apps?(22)

212.gdata.docs?(22)

213.Python_AES?(22)

214.pyglet?(22)

215.xml?(22)

216.mathtls?(22)

217.py?(22)

218.pymongo?(22)

219.redis?(20)

233.httpserver?(20)

234.ldap?(20)

235.win32event?(20)

236.formencode?(19)

237.BeautifulSoup?(19)

238.SimpleXMLRPCServer?(19)

239.gconf?(19)

240.html5lib?(19)

241.pygments?(19)

242.test?(19)

243.symbol?(18)

244.pkgutil?(18)

245.copy_reg?(18)

246.session?(18)

247.mechanize?(18)

248.net?(18)

249.html4?(18)

250.treeprocessors?(18)

251.SimpleHTTPServer?(18)

252.relativedelta?(18)

253.errors?(18)

254.postprocessors?(18)

255.preprocessors?(18)

256.PIL.Image?(18)

257.multifile?(17)

258.ast?(17)

259.pinax?(17)

260.colorsys?(17)

261.document?(17)

262.syslog?(17)

263.plistlib?(17)

264.tools?(17)

265.db?(17)

266.handler?(16)

267.url_manager?(16)

268.tkMessageBox?(16)

269.resource?(16)

270.log?(16)

271.ssl?(15)

272.bottle?(15)

273.wsgiref.util?(15)

274.profile?(15)

275.ElementTree?(15)

276.Numeric?(15)

277.win32serviceutil?(15)

278.keyword?(15)

279.robot_abstract?(15)

280.py_compile?(15)

281.poplib?(15)

282.main?(15)

283.win32gui?(15)

284.clr?(15)

285.pywintypes?(14)

286.core?(14)

287.misc?(14)

288.nltk?(14)

289.importlib?(14)

290.coverage?(14)

291.cmath?(14)

292.paramiko?(14)

293.pexpect?(14)

294.uu?(14)

295.openid?(14)

296.couchdb?(11)

362.pynotify?(11)

363.discoverdata?(11)

364.cv?(11)

365.forms?(11)

366._beautifulsoup?(11)

367.datadriven?(11)

368.termios?(11)

369.SCons.Tool?(11)

370.nose.case?(11)

371.bdb?(10)

372.mergejs?(10)

373.sunaudio?(10)

374.xmpp?(8)

461.options?(8)

462.uploadhandler?(8)

463.connection?(8)

464.support?(8)

465.robot?(8)

466.paste.fixture?(8)

467._hotshot?(8)

468.msilib?(8)

469.gedit?(8)

470.threadinglocal?(8)

471.ShUtil?(7)

472.mozrunner?(7)

473.SCons.SConf?(7)

474.rpc?(7)

475.ProgressBar?(7)

476.__init__?(7)

477.zc.buildout?(7)

478.gviz_api?(7)

479.LitConfig?(7)

480.aixcc?(7)

481.pip?(7)

482.interface?(7)

483.stubout?(7)

484.SCons.Options?(7)

485.link?(7)

486.blip?(7)

487.backend?(7)

488.rospy?(7)

489.wsgiref.headers?(7)

490.SCons.Platform?(7)

491.SCons.SConsign?(7)

492.SCons.Subst?(7)

493.SCons.Executor?(7)

494.lib?(7)

495.paste.fileapp?(7)

496.distutils.dir_util?(7)

497.metadata?(7)

498.ntpath?(7)

499.smtpd?(7)

500.input?(7)

501.SCons.CacheDir?(7)

502.gdb?(7)

503.ui?(7)

504.pp?(7)

505.SCons.PathList?(7)

506.foo?(7)

507.evalcontext?(7)

508.groc?(7)

509.wsgi_intercept?(7)

510.SCons.Taskmaster?(7)

511.f77?(7)

512.pyamf?(7)

513.chardet?(7)

514.graph?(7)

515.static?(7)

516.build?(7)

517.wavelet?(7)

518.element?(7)

519.pymc?(6)

520.database?(6)

521.test_utils?(6)

522.nose.config?(6)

523.planet?(6)

524.common_lint?(6)

525.urlconf_outer?(6)

526.IPython.ipapi?(6)

527.robotparser?(6)

528.genericpath?(6)

529.sqlite?(6)

530.Carbon.File?(6)

531.ioloop?(6)

532.IPython?(6)

533.cssutils?(6)

534.lex?(6)

535.gnome?(6)

536.ossaudiodev?(6)

537.scipy.special?(6)

538.docutils.core?(6)

539.player?(6)

540.routes?(6)

541._multiprocessing?(6)

542.jarray?(6)

543.auth?(6)

544.flickrapi?(6)

545.anyjson?(6)

546.ZSI?(6)

547.urlconf_inner?(6)

548.h5py?(6)

549.interfaces?(6)

550.UserString?(6)

551.consts?(6)

552.sre_compile?(6)

553._ctypes_test?(6)

554.reflect?(6)

555.yql?(6)

556.tkFileDialog?(6)

557.qt?(6)

558.wx.aui?(6)

559.statistics?(6)

560.gmock_test_utils?(6)

561.irclib?(6)

562.xbmc?(6)

563.engine?(6)

564.stackless?(6)

565.Options?(6)

566.status?(6)

567.ansi?(6)

568.pyclbr?(6)

569.pyinotify?(6)

570.gdbm?(5)

571.django_filters?(5)

572.win32process?(5)

573.audioop?(5)

574.plugins?(5)

575.debug?(5)

576.wave?(5)

577.nose.selector?(5)

578.mx.DateTime?(5)

579.serializers?(5)

580.pluginlib?(5)

581.reports?(5)

582.pystache?(5)

583.PyShell?(5)

584.tz?(5)

585.loader?(5)

586.webtest?(5)

587.BIFFRecords?(5)

588.language?(5)

589._mysql?(5)

590.symtable?(5)

591.System?(5)

592.CosNaming?(5)

593.distutils.tests?(5)

594.env?(5)

595.configuration?(5)

596.cjson?(5)

597.ImageDraw?(5)

598.usb?(5)

599.strop?(5)

600.ipaddr?(5)

601.scanner?(5)

602.format?(5)

603.http_server?(5)

604.epydoc.docparser?(5)

605.pysvn?(5)

606.neo_cs?(5)

607.haystack?(5)

608.test_i18n?(5)

609.crash_test_dummy?(5)

610.xbmcgui?(5)

611.manager?(5)

612.Exceptions?(5)

613.bpy?(5)

614.sre?(5)

615.win32com.client?(5)

616._base?(5)

617.zen_editor?(5)

618.apt?(5)

619.distutils.version?(5)

620.app?(5)

621.Pmw?(5)

622.rpm?(5)

623.Logs?(5)

624.killableprocess?(5)

625.epydoc?(5)

626.bluetooth?(5)

627.rexec?(5)

628.modulefinder?(5)

629.webhelpers?(5)

630._strptime?(5)

631.dircache?(5)

632.epydoc.markup?(5)

633.tidylib?(5)

634.templates?(5)

635.process?(5)

636.OSC?(5)

637.actions?(5)

638.ihooks?(5)

639.xlwt?(5)

640.ipthelp?(5)

641.distutils.dist?(5)

642.txamqp.spec?(5)

643.run_tests_util?(5)

644.fractions?(5)

645.treebuilders?(5)

646.enchant?(5)

647.win32pipe?(5)

648.caching.base?(5)

649.gnomevfs?(5)

650.sphinx.roles?(5)

651.markup?(5)

652.release?(5)

653.rrdtool?(5)

654.test_default_server?(5)

655.polib?(5)

656.jingo?(5)

657.nose.tools?(5)

658.Pyro.core?(5)

659.opcode?(5)

660.webchecker?(5)

661.match?(5)

662.libvirt?(5)

663.ExcelFormula?(5)

664.taskqueue_service_pb?(5)

665.maths?(5)

666.Formatting?(5)

667.portalocker?(5)

668.objects?(5)

669._testcapi?(5)

670.cyclone.web?(5)

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