httpstatuses/contents/codes/406.md
WALL-E 62df9e637c Add Python status constants (#57)
* Add Python status constants

* Add Python 2, Python 3+, Python 3.5+ status constants
2016-05-22 00:07:16 +01:00

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---
set: 4
code: 406
title: Not Acceptable
references:
"Rails HTTP Status Symbol": ":not_acceptable"
"Go HTTP Status Constant": "http.StatusNotAcceptable"
"Symfony HTTP Status Constant": "Response::HTTP_NOT_ACCEPTABLE"
"Python2 HTTP Status Constant": "httplib.NOT_ACCEPTABLE"
"Python3+ HTTP Status Constant": "http.client.NOT_ACCEPTABLE"
"Python3.5+ HTTP Status Constant": "http.HTTPStatus.NOT_ACCEPTABLE"
---
The target resource does not have a current representation that would be acceptable to the user agent, according to the proactive negotiation header fields received in the request<sup>[1](#ref-1)</sup>, and the server is unwilling to supply a default representation.
The server SHOULD generate a payload containing a list of available representation characteristics and corresponding resource identifiers from which the user or user agent can choose the one most appropriate. A user agent MAY automatically select the most appropriate choice from that list. However, this specification does not define any standard for such automatic selection, as described in [RFC7231 Section 6.4.1][3].
---
* <span id="ref-1"><sup>1</sup> Content Negotiation
[RFC7231 Section 5.3][2]</span>
* Source: [RFC7231 Section 6.5.6][1]
[1]: <http://tools.ietf.org/html/rfc7231#section-6.5.6>
[2]: <http://tools.ietf.org/html/rfc7231#section-5.3>
[3]: <http://tools.ietf.org/html/rfc7231#section-6.4.1>