date:20200116

[issue39350] Remove deprecated fractions.gcd()

2020-01-16 Thread STINNER Victor



New submission from STINNER Victor :

bpo-22486 added math.gcd() and deprecated fractions.gcd() in Python 3.5: commit 
48e47aaa28d6dfdae128142ffcbc4b0642422e90.

The function was deprecated during 4 cycles (3.5, 3.6, 3.7, 3.8): I propose 
attached PR to remove it.

--
components: Library (Lib)
messages: 360095
nosy: vstinner
priority: normal
severity: normal
status: open
title: Remove deprecated fractions.gcd()
versions: Python 3.9

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[issue22486] Add math.gcd()

2020-01-16 Thread STINNER Victor



Change by STINNER Victor :


--
pull_requests: +17417
pull_request: https://github.com/python/cpython/pull/18021

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[issue39350] Remove deprecated fractions.gcd()

2020-01-16 Thread STINNER Victor



Change by STINNER Victor :


--
keywords: +patch
pull_requests: +17416
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/18021

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[issue39351] Remove base64.encodestring() and base64.decodestring() aliases, deprecated since Python 3.1

2020-01-16 Thread STINNER Victor



New submission from STINNER Victor :

base64.encodestring() and base64.decodestring() are aliases deprecated since 
Python 3.1: encodebytes() and decodebytes() should be used instead.

In Python 3, "string" means Unicode, whereas these functions really work at the 
bytes level:

>>> base64.encodestring("text")
TypeError: expected bytes-like object, not str

>>> base64.decodestring("text")
TypeError: expected bytes-like object, not str

encodebytes() and decodebytes() names are explicit on the expected types (bytes 
or bytes-like).

This issue is similar to bpo-38916: "Remove array.fromstring() and 
array.tostring() aliases, deprecated since Python 3.2".

Attached PR removes the deprecated aliases base64.encodestring() and 
base64.decodestring().

--
components: Library (Lib)
messages: 360096
nosy: vstinner
priority: normal
severity: normal
status: open
title: Remove base64.encodestring() and base64.decodestring() aliases, 
deprecated since Python 3.1
versions: Python 3.9

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[issue39351] Remove base64.encodestring() and base64.decodestring() aliases, deprecated since Python 3.1

2020-01-16 Thread STINNER Victor



Change by STINNER Victor :


--
keywords: +patch
pull_requests: +17418
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/18022

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[issue39351] Remove base64.encodestring() and base64.decodestring() aliases, deprecated since Python 3.1

2020-01-16 Thread STINNER Victor



STINNER Victor  added the comment:

The deprecation was introduced 11 years ago in bpo-3613 by this change:

commit b54d801280e3f510782e2855504710947d10f053
Author: Georg Brandl 
Date:   Thu Jun 4 09:11:51 2009 +

#3613: add base64.encodebytes and decodebytes as the new spelling of 
encodestring and decodestring; deprecate the latter.

The aliases were deprecated for 7 cycles (Python 3.1 to Python 3.8).

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[issue39352] Remove the formatter module, deprecated since Python 3.4

2020-01-16 Thread STINNER Victor



New submission from STINNER Victor :

The formatter module has been deprecated in Python 3.4 by bpo-18716: commit 
1448ecf470013cee63c0682f615c5256928dc6b0.

In 2014, its removal was scheduled in Python 3.6: commit 
29636aeaccaf6a1412e0dc7c230db29cccf68381.

But bpo-25407 cancelled the removal from Python 3.6: commit 
5ad5a7d31f5328c73df523b6ade330d88573717e

"The new PEP 4 policy of any module existing in both 2.7 and 3.5 applies here, 
hence the module will be with us for a bit longer."

In the meanwhile, I'm not aware of anyone opposed to the removal.

Python 2.7 reached it's end of life, so I propose to remove the module:
https://docs.python.org/3.8/library/formatter.html

If someone needs this module, it's a single formatter.py file: it can easily be 
copied from Python 3.8. The intent here is to reduce the size of the standard 
library to remove the maintenance burden on Python core developers.

Note: I'm surprised, but it seems like the formatter module has no test!?

Attached PR removes the module.

--
components: Library (Lib)
messages: 360098
nosy: brett.cannon, vstinner
priority: normal
severity: normal
status: open
title: Remove the formatter module, deprecated since Python 3.4
versions: Python 3.9

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[issue39352] Remove the formatter module, deprecated since Python 3.4

2020-01-16 Thread STINNER Victor



Change by STINNER Victor :


--
keywords: +patch
pull_requests: +17419
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/18023

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[issue39352] Remove the formatter module, deprecated since Python 3.4

2020-01-16 Thread STINNER Victor



STINNER Victor  added the comment:

I did a quick & dirty code search in GitHub to check for "import formatter". 
There is no "import formatter" in the 5 first pages of code search in the 
Python programming language. IMHO it seems that this module is basically 
unused. To be honest, I even didn't know that it existed!?

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[issue39353] Deprecate the binhex module

2020-01-16 Thread STINNER Victor

New submission from STINNER Victor :

The binhex module encodes and decodes Apple Macintosh binhex4 data. It was
originally developed for TRS-80. In the 1980s and early 1990s it was used on
classic Mac OS 9 to encode binary email attachments.

Mac OS 9 is now heavily outdated, replaced by "macOS" (previously known as "Mac
OS X").

I propose to emit a DeprecationWarning in the binhex module and document that
it's deprecated.

I don't think that we have to schedule its removal yet, it can be decided
later. A first deprecation warning emitted at runtime might help to warn last
users, if there is any.

There are two binhex open issues:

* bpo-29566: no activity for almost 2 years (February 2017)
* bpo-34063: no activity for 1 year 1/2 (July 2018)

If we ignore global cleanup (done on the whole Python code base at once, not
specific to binhex), the binhex was basically untouched since it has been
ported to Python 3 (10 years ago). Maybe it means that it is very stable, which
can be seen as a quality ;-)

I looked for "import binhex" in the first 10 pages of GitHub code search
(restricted to Python programming language). I mostly found copies of Python
test_binhex.py, no real usage of binhex.

On Stackoverflow, the latest questions about binhex has been asked in 2012:
https://stackoverflow.com/questions/12467973/binhex-decoding-using-java-code

I also found an answer suggesting to use binascii.a2b_hex() to decode a string
the hexadecimal string "2020202020202020202020205635514d385a5856":
https://stackoverflow.com/questions/9683278/how-to-get-hard-disk-drivers-serial-number-in-python/9683837#9683837

But binascii.unhexlify() does the same than binascii.a2b_hex().

Attached PR deprecates binhex.

--
components: Library (Lib)
messages: 360100
nosy: serhiy.storchaka, vstinner
priority: normal
severity: normal
status: open
title: Deprecate the binhex module
versions: Python 3.9

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