requests, czyli HTTP dla ludzi

httplib urllib(2) requests na ratunek

requests, czyli HTTP dla ludzi

Zbigniew Siciarz

PyWaw 11 lipca 2011

@zsiciarz



Plan prezentacji

1 httplib

2 urllib(2)

3 requests na ratunek

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httplib

import httplib

conn = httplib.HTTPConnection("httpbin.org")conn.request("GET", "/status /418")response = conn.getresponse ()print response.status , response.reasonprint response.read()

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httplib

zbyszek@wicherek :~/ Dokumenty/requests$ python code/httplib1.py418 I’M A TEAPOT

-=[ teapot ]=-

_...._.’ _ _ ‘.

| ."‘ ^ ‘". _,\_;‘"---" ‘|//

| ;/\_ _/

‘"""‘

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urllib/urllib2

obie biblioteki w stdlib

ró»na funkcjonalno±¢

urllib: kodowanie parametrów, pobieranie wprost do pliku

urllib2: obsªuga otwieraczy

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urllib2 - Basic Auth

import urllib2

url = ’http :// httpbin.org/basic -auth/user/pass’user = ’user’password = ’pass’req = urllib2.Request(url)

pwd_manager = urllib2.HTTPPasswordMgrWithDefaultRealm ()pwd_manager.add_password(None , url , user , password)auth_manager = urllib2.HTTPBasicAuthHandler(pwd_manager)opener = urllib2.build_opener(auth_manager)urllib2.install_opener(opener)

response = urllib2.urlopen(req)print response.getcode ()print response.headers.getheader(’content -type’)print response.read()

O RLY?

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urllib2 - Basic Auth

import urllib2

url = ’http :// httpbin.org/basic -auth/user/pass’user = ’user’password = ’pass’req = urllib2.Request(url)

pwd_manager = urllib2.HTTPPasswordMgrWithDefaultRealm ()pwd_manager.add_password(None , url , user , password)auth_manager = urllib2.HTTPBasicAuthHandler(pwd_manager)opener = urllib2.build_opener(auth_manager)urllib2.install_opener(opener)

response = urllib2.urlopen(req)print response.getcode ()print response.headers.getheader(’content -type’)print response.read()

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requests

http://python-requests.org/

Requests: Python HTTP Module (That Doesn't Suck)

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requests



Requests: The Simple (e.g. usable) HTTP Module

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requests



Requests: The Simple (e.g. usable) HTTP Module

Requests: HTTP for Humans

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requests - API

requests.get(...)

requests.post

requests.put

requests.delete

requests.patch

requests.options

requests.head

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requests - proste »¡danie GET

import requests

response = requests.get(’http :// httpbin.org/status /418’)

print response.status_codeprint response.content

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requests - Basic Auth

import requests

url = ’http :// httpbin.org/basic -auth/user/pass’response = requests.get(url , auth=(’user’, ’pass’))

print response.status_codeprint response.headers[’content -type’]print response.content

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requests - Basic Auth

zbyszek@wicherek :~/ Dokumenty/requests$ python code/requests_2.py200application/json{

"authenticated": true ,"user": "user"

}

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requests - POST i upload pliku

import requests

data = dict(username=’’)with open(__file__) as f:

response = requests.post(’http :// httpbin.org/post’,data=data , files={’filename ’: f})

print response.status_codeprint response.content

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requests - POST i upload pliku

zbyszek@wicherek :~/ Dokumenty/requests$ python code/requests_3.py200{

"origin": "::ffff :184.73.223.212","files": {

"filename": "import requests\n\n<CIACH >"},"form": null ,"url": "http :// httpbin.org/post","args": {},"headers": {

"Content -Length": "555",<CIACH >"Content -Type": "multipart/form -data; boundary =3298

fc5c93854f96b712fa4708e4cdef"},"data": "username"

}

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Alternatywy

PyCURL wrapper na libcurl

Mechanize klient to "przegl¡darka"

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The End

Pytania?

http://siciarz.net@zsiciarz

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requests, czyli HTTP dla ludzi

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