Python Lover(6)Twisted and Basic

PythonLover(6)TwistedandBasic

1.InstallationandVersionUpgradeonPython

Downloadthepackagefromofficialwebsite.Igetthese2version,2.7.10and3.4.3formac.

https://www.python.org/

VerifytheInstallation

>python-V

Python2.7.6

>python2-V

Python2.7.10

>python3-V

Python3.4.3

toolspiphttp://zhonghuan.info/2014/10/01/pip%E4%BB%8B%E7%BB%8D%E4%B8%8E%E4%BD%BF%E7%94%A8/

Setuptherightversion,Iplantouse2.7.10,becausealotoftoolsandotherthings,theyarenotsupportingpython3rightnow.

>rm-fr/usr/local/bin/python

>rm-fr/usr/bin/python

>sudoln-s/usr/local/bin/python2/usr/bin/python

>python-V

Python2.7.10

Downloadpipfile

>wgethttps://bootstrap.pypa.io/get-pip.py

Installpip

>pythonget-pip.py

Verifytheversion

>pip-V

pip7.1.1from/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages(python2.7)

Installorupgradesetuptools

>pipinstall-Usetuptools

Upgradepipifneeded

>pipinstall-Upip

UsepiptoinstalllatestDjango

>pipinstallDjango==1.8.4

VerifytheDjangoinstallation

>python

Python2.7.10(v2.7.10:15c95b7d81dc,May232015,09:33:12)

[GCC4.2.1(AppleInc.build5666)(dot3)]ondarwin

Type"help","copyright","credits"or"license"formoreinformation.

>>>importdjango

>>>print(django.get_version())

1.8.4

HowweuseDjangothere

DownloadandusepycharmforPythonIDE

https://www.jetbrains.com/pycharm/

DownloadTwisted

>wgethttp://twistedmatrix.com/Releases/Twisted/15.4/Twisted-15.4.0.tar.bz2

Unzipthefileandgototheworkingdirectory

>cdTwisted-15.4.0

Installfromthesource

>pythonsetup.pyinstall

Checktheversionafterinstallation.

>>>printtwisted.version

[twisted,version15.4.0]

2.UnderstandModel

single-threadedsynchronoustask1—>task2—>task3

thethreadedmodeltask1—>

task2—>

task3—>

Asynchronousmodeltask1—>task2—>task1—>task3—>task2—>task1...

Thelastmodelworksbest>

a.Therearealargenumberoftaskssothereislikelyalwaysatleastonetaskthatcanmakeprogress.

b.ThetasksperformlotsofI/O,causingasynchronousprogramtowastelotsoftimeblocking

c.Thetasksarelargelyindependent

workingontheselinks

http://twistedmatrix.com/documents/current/web/howto/

http://twistedmatrix.com/documents/current/web/howto/using-twistedweb.html

http://lingxiankong.github.io/blog/2013/12/23/python-setup/

http://developer.51cto.com/art/201003/189317.htm

http://yansu.org/2013/05/15/learn-how-to-use-distutils.html

http://www.ibm.com/developerworks/cn/linux/sdk/python/charm-19/

browser——>request/response——>HTTPrender,Templatesystem.

3.ObjectsandTwisted

SiteObjects

fromtwisted.webimportserver,resource

fromtwisted.internetimportreactor

classSimple(resource.Resource):

isLeaf=True

defrender_GET(self,request):

return"<html>Hello,Sillycat.</html>"

site=server.Site(Simple())

reactor.listenTCP(8080,site)

reactor.run()

VisitthisURLwillworkhttp://localhost:8080/

TwistdwebServer

>twistdweb--help

Usage:twistd[options]web[weboptions]

Hereisthecommandtostarttwistdserver

>twistdweb--path./--port8080--logfile./twistd.log

Then,wecanvisithttp://localhost:8080/toseethecurrentdirectory.

Thiscommandwillkilltheprocess

>kill`cattwistd.pid`

http://twistedmatrix.com/documents/current/index.html

http://twistedmatrix.com/documents/current/web/howto/web-in-60/

DynamicWebContent

fromtwisted.internetimportreactor

fromtwisted.web.serverimportSite

fromtwisted.web.resourceimportResource

importtime

classClockPage(Resource):

isLeaf=True

defrender_GET(self,request):

return"<html><body>%s</body></html>"%(time.ctime(),)

resource=ClockPage()

factory=Site(resource)

reactor.listenTCP(8880,factory)

reactor.run()

URLDispatch

http://twistedmatrix.com/documents/current/web/howto/web-in-60/static-dispatch.html

fromtwisted.web.serverimportSite

fromtwisted.web.resourceimportResource

fromtwisted.internetimportreactor

fromtwisted.web.staticimportFile

root=Resource()

root.putChild("foo",File("/tmp"))

root.putChild("bar",File("/lost+found"))

root.putChild("baz",File("/opt"))

factory=Site(root)

reactor.listenTCP(8880,factory)

reactor.run()

File—>Resource—>Site—>reactor

http://codereview.stackexchange.com/questions/45060/simple-rest-api-server

http://jacek99.github.io/corepost/doc/build/html/index.html

DynamicURLDispatch

http://twistedmatrix.com/documents/current/web/howto/web-in-60/dynamic-dispatch.html

fromtwisted.web.serverimportSite

fromtwisted.web.resourceimportResource

fromtwisted.internetimportreactor

fromcalendarimportcalendar

classYearPage(Resource):

def__init__(self,year):

Resource.__init__(self)

self.year=year

defrender_GET(self,request):

return"<html><body><pre>%s</pre></body></html>"%(calendar(self.year),)

classCalendar(Resource):

defgetChild(self,name,request):

returnYearPage(int(name))

root=Calendar()

factory=Site(root)

reactor.listenTCP(8880,factory)

reactor.run()

Site-theobjectwhichassociatesalisteningserverportwiththeHTTPimplementation

Resource-aconvenientbaseclasstousewhendefiningcustompages

reactor-theobjectwhichimplementstheTwistedmainloop

References:

Twisted

http://krondo.com/?p=1209

https://twistedmatrix.com/trac/

https://github.com/twisted/twisted

TwistedIntro

https://github.com/jdavisp3/twisted-intro

http://krondo.com/?page_id=1327

ChineseVersion

https://github.com/luocheng/twisted-intro-cn

http://turtlerbender007.appspot.com/twisted/index.html

PythonBasic

example

https://github.com/orangain/pika-twisted-example

https://www.digitalocean.com/community/tutorials/how-to-package-and-distribute-python-applications

distutils

http://www.ibm.com/developerworks/cn/linux/sdk/python/charm-19/

http://yansu.org/2013/05/15/learn-how-to-use-distutils.html

http://developer.51cto.com/art/201003/189317.htm

http://lingxiankong.github.io/blog/2013/12/23/python-setup/

web

http://twistedmatrix.com/documents/current/web/howto/

http://twistedmatrix.com/documents/current/web/howto/using-twistedweb.html

相关推荐