Summary of http request library and python request library in python

Summary of http request library and python request library in python

I recently used python for interface testing and found that there are many http request methods in python, which are summarized as follows:

1. python built-in library ---- urllib2

The python built-in library urllib2 is used in many ways and is easy to use as follows:

import urllib2response = urllib2.urlopen('http://localhost:8080/jenkins/api/json?pretty=true')print response.read()

Simple get request

import urllib2import urllibpost_data = urllib.urlencode({})response = urllib2.urlopen('http://localhost:8080/, post_data)print response.read()print response.getheaders()

This is the simplest example of urllib2 sending post. Many codes

Ii. python built-in library -- httplib

Httplib is a relatively underlying http request module, and urlib is encapsulated based on httplib. Simple use:

import httplibconn = httplib.HTTPConnection("www.python.org")conn.request("GET", "/index.html")r1 = conn.getresponse()print r1.status, r1.reasondata1 = r1.read()conn.request("GET", "/parrot.spam")r2 = conn.getresponse()data2 = r2.read()conn.close()

Simple get request

Let's look at the post request.

import httplib, urllibparams = urllib.urlencode({'@number': 12524, '@type': 'issue', '@action': 'show'})headers = {"Content-type": "application/x-www-form-urlencoded",  "Accept": "text/plain"}conn = httplib.HTTPConnection("bugs.python.org")conn.request("POST", "", params, headers)response = conn.getresponse()data = response.read()print dataconn.close()

Is it too complicated. I have to repeat the document every time I write it. Let's take a look at the third type.

Iii. Third-party database-requests

Sending a get request is super simple:

print requests.get('http://localhost:8080).text

Let's take a look at the post request.

payload = {'key1': 'value1', 'key2': 'value2'}r = requests.post("http://httpbin.org/post", data=payload)print r.text

It is also very simple.

Let's see if you want to authenticate:

url = 'http://localhost:8080'r = requests.post(url, data={}, auth=HTTPBasicAuth('admin', 'admin'))print r.status_codeprint r.headersprint r.reason

Is it simpler than urllib2, and requests comes with json parsing. This is awesome.

 

For more details, refer to the python documentation as follows:

Urllib2: https://docs.python.org/2/library/urllib2.html

Httplib: https://docs.python.org/2/library/httplib.html? Highlight = httplib

Requests: http://www.python-requests.org/en/latest/