Python Developer's Daily Routine
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Maxim Avanov outlines his daily routine as a Python developer, which includes using tools like Cookiecutter, virtualenv, pyenv, Vagrant, Ansible, and others to manage projects and environments. He discusses setting up virtual environments with pyenv and virtualenv, generating project templates with Cookiecutter, provisioning development environments with Vagrant, and deploying with Ansible. The document also briefly introduces common Python web frameworks, ORMs, background task queues, and testing tools.
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setup.py
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Bootstrapping
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![9
pip-tools
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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!