[issue31589] Links for French documentation pdf is broken

[fabrice]

New submission from fabrice:

Hi,

In this page : https://docs.python.org/fr/2/download.html, all the 
documentation links aren't  available, for example : 

- https://docs.python.org/fr/2/archives/python-2.7.14-docs-pdf-a4.zip
- https://docs.python.org/fr/2/archives/python-2.7.14-docs-pdf-a4.tar.bz2

So, I can't read the documentation in French :)

Regards,
Fabrice

--
assignee: docs@python
components: Documentation
messages: 303024
nosy: docs@python, fabrice
priority: normal
severity: normal
status: open
title: Links for French documentation pdf is broken
versions: Python 2.7

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[issue12271] panel.h is not found even if it's installed on various flavours of SUSE

[Fabrice BAUZAC]

Fabrice BAUZAC  added the comment:

I have been hit by the same issue today.
Kenneth's patch seems fine.  Why not integrate it?

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nosy: +fbauzac

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[issue35956] Sort documentation could be improved for complex sorting

[fabrice salvaire]

New submission from fabrice salvaire :

I just implemented Graham Scan algorithm in Python 3 and have to read carefully 
the sort documentation.  Notice this is a good algorithm for a large audience 
language like Python.

Since Python 3, the old order function cmp is depicted as an old way to proceed.

But some sorting procedure require complex order like this

def sort_by_y(p0, p1):
return p0.x - p1.x if (p0.y == p1.y) else p0.y - p1.y
sorted(points, key=cmp_to_key(sort_by_y))

which is less natural to implement than

def sort_by_y(p0, p1):
return p0.x < p1.x if (p0.y == p1.y) else p0.y < p1.y
sorted(points, cmp=sort_by_y)

Since Python 3 we should do this

points.sort(key=attrgetter('x'))
points.sort(key=attrgetter('y'))

But we must take care to the chaining order !!! Here we must sort first on x 
then on y.

I think the documentation could explain much better how to perform complex sort 
and the performance of the Python sort algorithm.  Is the old way faster than 
the new one ???  What about short and large array ???  What happen when we sort 
a zillion of short array ???

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assignee: docs@python
components: Documentation
messages: 335163
nosy: FabriceSalvaire, docs@python
priority: normal
severity: normal
status: open
title: Sort documentation could be improved for complex sorting
type: enhancement
versions: Python 3.7

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[issue33390] matmul @ operator precedence

[fabrice salvaire]

New submission from fabrice salvaire :

I use the new matmul @ operator to implement units, for example 1@u_s for 1 
second ( see alpha state implementation at 
https://github.com/FabriceSalvaire/PySpice/tree/master/PySpice/Unit ).

It looks cool, but unfortunately 10@u_s / 2@u_s is actually interpreted as 
(10@u_s / 2)@u_s instead of (10@u_s) / (2@u_s) due to operator precedence + <<< 
- <<< * <<< @ <<< / <<< // <<< % 
https://docs.python.org/3/reference/expressions.html#operator-precedence

Since Python is widely used for scientific applications, would it be possible 
to investigate this topic ?

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components: Interpreter Core
messages: 315918
nosy: FabriceSalvaire
priority: normal
severity: normal
status: open
title: matmul @ operator precedence
type: behavior
versions: Python 3.5

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[issue20197] Support WebP image format detection in imghdr module

[Fabrice Aneche]

New submission from Fabrice Aneche:

Detect the webp file format (RIFF container + WEBP), return webp as format 
detected.

--
components: Library (Lib)
files: imghdr_webp.patch
keywords: patch
messages: 207702
nosy: akhenakh, gregory.p.smith
priority: normal
severity: normal
status: open
title: Support WebP image format detection in imghdr module
type: enhancement
versions: Python 2.7, Python 3.4
Added file: http://bugs.python.org/file33366/imghdr_webp.patch

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