I'm looking for a way, in Python, to get the HTTP message from the status code. Is there a way that is better than building the dictionary yourself?
Something like:
>>> print http.codemap[404]
'Not found'
Add a comment
|
4 Answers
In Python 2.7, the httplib module has what you need:
>>> import httplib
>>> httplib.responses[400]
'Bad Request
Constants are also available:
httplib.responses[httplib.NOT_FOUND]
httplib.responses[httplib.OK]
Update
@shao.lo added a useful comment bellow. The http.client module can be used:
# For Python 3 use
import http.client
http.client.responses[http.client.NOT_FOUND]
1 Comment
shao.lo
For python3 use
import http.client and http.client.responses[http.client.NOT_FOUND]This problem is solved in Python 3.5 onward. Python http library has a built-in module called HTTPStatus.
The HTTP status components such as numeric code (value), the phrase, and the description are all available from attributes.
The documentation provides this example:
>>> from http import HTTPStatus
>>> HTTPStatus.OK
HTTPStatus.OK
>>> HTTPStatus.OK == 200
True
>>> HTTPStatus.OK.value
200
>>> HTTPStatus.OK.phrase
'OK'
>>> HTTPStatus.OK.description
'Request fulfilled, document follows'
>>> list(HTTPStatus)
[HTTPStatus.CONTINUE, HTTPStatus.SWITCHING_PROTOCOLS, ...]
Comments
Python 3:
You could use HTTPStatus(<error-code>).phrase to obtain the description for a given code value. E.g. like this:
try:
response = opener.open(url,
except HTTPError as e:
print(f'In func my_open got HTTP {e.code} {HTTPStatus(e.code).phrase}')
Would give for example:
In func my_open got HTTP 415 Unsupported Media Type
Which answers the question. However a much more direct solution can be obtained from HTTPError.reason:
try:
response = opener.open(url, data)
except HTTPError as e:
print(f'In func my_open got HTTP {e.code} {e.reason}')
1 Comment
Breandán Dalton
@JSTL It was, but this answer gives usage examples.
A 404 error indicates that the page may have been moved or taken offline. It differs from a 400 error which would indicate pointing at a page that never existed.
1 Comment
Guy Markman
I changed the message