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Python Developer's Daily Routine
- 1. Python Developer's Daily Routine Maxim Avanov (github.com/avanov)
- 3. 3 Project structure .cei /hbt |-cei - hbt | `-_ii_.y - _nt_p `-stpp - eu.y
- 4. 4 setup.py fo stpol ipr stp fn_akgs rm eutos mot eu, idpcae stp eu( nm=Cei' ae'hbt, vrin'..' eso=001, pcae=idpcae(, akgsfn_akgs) ts_ut=tss, etsie'et' tssrqie[pts' 'oeae] et_eur='yet, cvrg', isalrqie='yai=152] ntl_eurs[Prmd=.a' )
- 5. 5 Bootstrapping $ python setup.py install $ python setup.py develop $ python setup.py test $ python setup.py regtister sdist [bdist_egg] upload
- 7. 7 pip commands $ppisalPrmd i ntl yai $ppisalPrmd-ugae i ntl yai -prd $ppisalPrmd=.a -ugae i ntl yai=152 -prd $ppuisalPrmd i nntl yai
- 9. 9 pip-tools $pprve i-eiw rqet=01. aalbe(o hv 01.) euss=.34 vial yu ae .32 $pprve -at i-eiw -uo ..<i isalotu> . pp ntl upt $pprve -itrcie i-eiw -neatv rqet=01. aalbe(o hv 01.) euss=.40 vial yu ae .32 Ugaenw []s [],[]l []i y prd o? Ye, No Al, Qut .. .
- 10. 10 Cookiecutter • Generates initial project files from defined templates; • File names are also templates; • Transparently works with remote VCS.
- 11. 11 Cookiecutter template .cei-epae /hbttmlt |-coicte.sn - okeutrjo `-{coicte.rjc_ae} - {okeutrpoetnm} |-{coicte.rjc_ae} - {okeutrpoetnm} | `-_ii_.y - _nt_p `-stpp - eu.y
- 13. 13 Cookiecutter in action $coicte {rjc_epaept} okeutr poettmlt_ah poetnm (eal i "yrjc"?mnw rjc_ae dfut s mpoet) ye poetvrin(eal i ".."?011 rjc_eso dfut s 001) .. $te .mnw re /ye .mnw /ye |-mnw - ye | `-_ii_.y - _nt_p `-stpp - eu.y
- 14. We'd like to isolate project environments
- 15. 15 virtualenv $vruln ~vn/poetnm} itaev /ev{rjc_ae $suc ~vn/poetnm}bnatvt ore /ev{rjc_ae/i/ciae What if we need another Python version? $vruln ~vn/poetnm}- pto3 itaev /ev{rjc_ae p yhn
- 18. 18 pyenv - 5 steps to happiness $gtcoegt/gtu.o/yupevgt~pev i ln i:/ihbcmyu/yn.i /yn $eh 'xotPEVRO=$OEpev'> ~.ahc co epr YN_OT"HM/yn" > /bsr $eh 'xotPT=$YN_OTbn$AH'> ~.ahc co epr AH"PEVRO/i:PT" > /bsr $eh 'vl"(yn ii -" > ~.ahc co ea $pev nt )' > /bsr $ee $HL xc SEL
- 19. 19 pyenv - Rise and Shine! $pevisalyn ntl l $pevisal276 yn ntl .. $pevisal333 yn ntl .. $pevisalpp-.. yn ntl yy221 $pevrhs yn eah
- 20. 20 The Happiness $ pyenv versions $ pyenv version $ pyenv local 2.7.6 3.3.3 $ pyenv global 3.3.3 $ pyenv shell pypy-2.2.1 $ pyenv whence 2to3
- 21. 21 ... $wihpto hc yhn /oegotrtrpevsispto hm/hswie/yn/hm/yhn $pto yhn Pto 273(7ad1fc Nv2 21,1:81) yhn .. 8a9e09, o 4 03 84:3 [yy221wt GC463 o lnx PP .. ih C ..] n iu2 >> >>
- 23. 23 pyenv-virtualenv $gtcoegt/gtu.o/yupev i ln i:/ihbcmyu/ynvruln.i ~pevpuispevvruln itaevgt /yn/lgn/yn-itaev $pevvruln pp-.. ~vn/poetnm} yn itaev yy221 /ev{rjc_ae
- 24. 24 pyenv-virtualenv in action $pevvrulns yn itaev {rjc_ae (rae fo /oegotrtrpevvrin/yy221 poetnm} cetd rm hm/hswie/yn/esospp-..) $suc ~pevvrin/poetnm}bnatvt ore /yn/esos{rjc_ae/i/ciae
- 25. Well done!
- 26. Now, what about other components?
- 27. Virtualization
- 28. 28 Vagrant • Written in Ruby • Relies on VirtualBox • Runs on Linux / OS X / Win
- 29. 29 Juju • Written in Python / Go • Relies on LXC • Linux only
- 30. 30 Docker • Written in Go • Relies on LXC and AUFS • Linux only
- 31. 31 Vagrant's Success Story... 1. Put a Vagrantfile into the project root 2. $ vagrant up 3. $ vagrant ssh 4. Profit!
- 32. 32 Vagrantfile Vgatcniue"" d |ofg arn.ofgr(2) o cni| cni.mbx="rjc_ae ofgv.o poetnm" cni.mbxul="tp/flsvgatpcmpeie4bx ofgv.o_r ht:/ie.arnu.o/rcs6.o" cni.mntok:rvt_ewr,i:"9.6.310 ofgv.ewr piaentok p 12183.0" ed n
- 33. 33 ...Vagrant's Success Story 1. Put a Vagrantfile into the project root 2. $ vagrant up 3. $ vagrant ssh 4. Profit! ..??? 5. Deployment
- 34. 34 Deployment tools Chef (Ruby) Puppet (Ruby) Ansible (Python) Salt (Python)
- 35. 35 Ansible Success Story 1. Specify an inventory file 2. Specify a playbook 3. $ ansible-playbook ./playbook.yml -i ./hosts
- 37. 37 Ansible playbook -hss dvlpv ot: eeo-m sd:ys uo e tss ak: nm:esr atccei u t dt ae nue p ah s p o ae ato:atudt_ah=e cin p paecceys http://www.ansibleworks.com/docs/modules.html
- 38. 38 Ansible meets Vagrant $asbepabo .pabo.m - .hss- nil-lyok /lyokyl i /ot v uvgat- prmk -piae arn c aaio -rvtky$OE.arn./neuepiaeky e=HM/vgatdiscr_rvt_e or $vgatpoiin arn rvso
- 39. 39 Ansible - Vagrant Integration #Vgatie arnfl Vgatcniue"" d |ofg arn.ofgr(2) o cni| #.. . cni.mpoiin:nil d |nil| ofgv.rvso asbe o asbe asbepabo ="/lyokyl nil.lyok .pabo.m" asbeivnoypt ="/ot" nil.netr_ah .hss asbevroe="" nil.ebs v ed n ed n
- 40. Python & Web
- 41. 41 Web Server Gateway Interface Standardized by PEP 333, PEP 3333 dfapiainevrn satrsos) e plcto(nio, tr_epne: satrsos(20O' ['otn-ye,'etpan)) tr_epne'0 K, (CnetTp' tx/li'] yed'el Wrdn il Hlo ol'
- 42. 42 WSGI Servers • CherryPy WSGI Server • gunicorn • tornado.wsgi • uWSGI • Waitress http://nichol.as/benchmark-of-python-web-servers
- 43. Frameworks
- 44. 44 Heavyweights • Django • Twisted • web2py • Zope
- 45. 45 Middleweights • CherryPy • Pyramid • Tornado • TurboGears
- 46. 46 Flyweights • Bottle • Flask • Webpy
- 47. Database Access
- 48. 48 ORM • SQLAlchemy ORM • Django ORM (Django only) • Pony ORM • Peewee
- 49. 49 Something else • Native DB-API 2.0 (standardized with PEP 249) • SQLAlchemy's raw queries • mosql
- 50. 50 SQL DDL Versioning & Data Migration • South (Django only) • Alembic (SQLAlchemy) • Pyrseas
- 52. 52 Celery • Out of the box solution for complex cases; • Multiple brokers - RabbitMQ, Redis, RDBMS, SQS, MongoDB etc; • Tasks scheduler; • Results backends.
- 53. 53 RQ (Redis Queue) • Designed to have a low barrier to enter; • Uses Redis' Pub/Sub feature.
- 54. Process managers
- 55. 55 Process managers • Supervisor • Circus.io
- 56. Sentry
- 60. 60 Testing tools • unittest • py.test • nose • WebTest • coverage • tox
- 61. Thank you!