Python - Request Status Codes
After receiving and interpreting a request message, a server responds with an HTTP response message. The response message has a Status-Code. It is
a 3-digit integer where first digit of the Status-Code defines the class of response and the last two digits do not have any categorization role.
There are 5 values for the first digit:
Status Codes
| S.N. |
Code and Description |
| 1 |
1xx: Informational It means the request was received and the process is continuing. |
| 2 |
2xx: Success It means the action was successfully received, understood, and accepted. |
| 3 |
3xx: Redirection It means further action must be taken in order to complete the request. |
| 4 |
4xx: Client Error It means the request contains incorrect syntax or cannot be fulfilled. |
| 5 |
5xx: Server Error It means the server failed to fulfill an apparently valid request. |
Successful Response
In the below example we access a file from a url and the response is successful. So the status code returned is 200.
import urllib3
http = urllib3.PoolManager()
resp = http.request('GET', 'http://howcodex.com/robots.txt')
print resp.data
# get the status of the response
print resp.status
When we run the above program, we get the following output −
User-agent: *
Disallow: /tmp
Disallow: /logs
Disallow: /rate/*
Disallow: /cgi-bin/*
Disallow: /videotutorials/video_course_view.php?*
Disallow: /videotutorials/course_view.php?*
Disallow: /videos/*
Disallow: /*/*_question_bank/*
Disallow: //*/*/*/*/src/*
200
Unsuccessful Response
In the below example we access a file from a url which does not exist. The response is unsuccessful. So the status code returned is 403.
import urllib3
http = urllib3.PoolManager()
resp = http.request('GET', 'http://howcodex.com/robot.txt')
print resp.data
# get the status of the response
print resp.status
When we run the above program, we get the following output −
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>403 Forbidden</title>
</head><body>
<h1>Forbidden</h1>
<p>You don't have permission to access /robot.txt
on this server.</p>
</body></html>
403
