[issue38902] image/webp support in mimetypes

[Éric Araujo]

Change by Éric Araujo :


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resolution:  -> duplicate
stage: patch review -> resolved
status: open -> closed
superseder:  -> Support webp and avif image formats in mimetypes
versions: +Python 3.11 -Python 3.10

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[issue38902] image/webp support in mimetypes

[Leo Antunes]

Change by Leo Antunes :


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nosy: +costela

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[issue38902] image/webp support in mimetypes

[Ivan Borshchov]

Ivan Borshchov  added the comment:

Very uncomfortable to work with webp without it And webp is now pretty hyped 
due to Google's Core Web Vitals update. 
E.g. pretty popular Django Storages relies on python native mimetype module, so 
because of this bug it always sets default application/octet-stream to AWS 
headers, so in the end when users click Open Image on new tab they get webp 
downloaded 藍藍藍
 

https://github.com/jschneier/django-storages/blob/6071ac3410ee6ecd498b5691f1b45d376374bffc/storages/backends/s3boto.py#L391

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nosy: +ivan2

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[issue38902] image/webp support in mimetypes

[Inada Naoki]

Inada Naoki  added the comment:

I'm +1 to add it in common types, because webp is really de-facto standard.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types

If no objection, I will merge this in next week.

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nosy: +methane
versions: +Python 3.10 -Python 3.9

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[issue38902] image/webp support in mimetypes

[waicalibre]

Change by waicalibre :


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pull_requests: +22052
pull_request: https://github.com/python/cpython/pull/23034

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[issue38902] image/webp support in mimetypes

[waicalibre]

Change by waicalibre :


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keywords: +patch
nosy: +waicalibre
nosy_count: 3.0 -> 4.0
pull_requests: +22051
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/22718

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[issue38902] image/webp support in mimetypes

[Lee Ball]

Lee Ball  added the comment:

Sorry, amendment to my last comment: the WebM approval without IANA 
registration was in msg232095 of https://bugs.python.org/issue16329

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[issue38902] image/webp support in mimetypes

[Lee Ball]

Lee Ball  added the comment:

Okay, I've opened a bug with WebP team regarding IANA registration: 
https://bugs.chromium.org/p/webp/issues/detail?id=448

For what its worth, WebM was added without an IANA registration as a de facto 
standard. Approval was given in this 2014 comment: 
https://bugs.python.org/issue16329

To help support the recognition of WebP as a de facto standard, the image 
format is currently seeing about the same amount of usage on the web as BMP 
images, and has seen sharp growth this year, approximately tripling in usage. 
Data from W3: https://w3techs.com/technologies/details/im-webp

Please let me know if there's any data I can provide, or anyone specific I 
should contact regarding approval.

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[issue38902] image/webp support in mimetypes

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

Similar to previous discussions having an IANA registration would improve the 
acceptance of the patch to add it. It's still not listed at 
https://www.iana.org/assignments/media-types/media-types.xhtml

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nosy: +xtreak

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[issue38902] image/webp support in mimetypes

[Florian Dahlitz]

Change by Florian Dahlitz :


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nosy: +DahlitzFlorian

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[issue38902] image/webp support in mimetypes

[Lee Ball]

New submission from Lee Ball :

WebP is currently missing from the list of supported mimetypes.

It's an open source image format, using VP8 or VP8L for image data and RIFF for 
containers.

Previously, adding webp support was considered in 2011, but wasn't well 
supported at the time: ( https://bugs.python.org/issue11362 ). In 2019, WebP 
now enjoys support in major browsers and OSes. Its sister video format WebM was 
added to mimetypes in 2016 ( https://bugs.python.org/issue16329 ) and has 
similar support to WebP.

WebP homepage: https://developers.google.com/speed/webp
WebP source: https://chromium.googlesource.com/webm/libwebp/
RIFF container spec: 
https://developers.google.com/speed/webp/docs/riff_container
VP8 format spec: https://datatracker.ietf.org/doc/rfc6386/

--
components: Library (Lib)
messages: 357386
nosy: leecatball
priority: normal
severity: normal
status: open
title: image/webp support in mimetypes
type: enhancement
versions: Python 3.9

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