[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[Łukasz Langa]

Łukasz Langa  added the comment:


New changeset 6d66de97f814fb504296c153957d87e49993f8ec by Miss Islington (bot) 
in branch '3.10':
bpo-44959: Add fallback to extension modules with '.sl' suffix on HP-UX 
(GH-27857) (GH-29152)
https://github.com/python/cpython/commit/6d66de97f814fb504296c153957d87e49993f8ec


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nosy: +lukasz.langa

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[miss-islington]

miss-islington  added the comment:


New changeset aa8c3446c085175e65e736b0d2e32719c4d2 by Miss Islington (bot) 
in branch '3.9':
bpo-44959: Add fallback to extension modules with '.sl' suffix on HP-UX 
(GH-27857)
https://github.com/python/cpython/commit/aa8c3446c085175e65e736b0d2e32719c4d2


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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[STINNER Victor]

STINNER Victor  added the comment:

> Can this be merged to python 3.10 as well? Thanks

It's unclear to me if it's a new feature or a bugfix. But since the change is 
trivial, I'm fine with backporting it as a bugfix to 3.9 and 3.10 branches.

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[miss-islington]

Change by miss-islington :


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pull_requests: +27429
pull_request: https://github.com/python/cpython/pull/29152

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[miss-islington]

Change by miss-islington :


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pull_requests: +27430
pull_request: https://github.com/python/cpython/pull/29153

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[Florin Spătar]

Florin Spătar  added the comment:

Can this be merged to python 3.10 as well? Thanks

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[STINNER Victor]

Change by STINNER Victor :


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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed
versions: +Python 3.11 -Python 3.8

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 2396fa6537d79554ac694dbd2b0b30eeb3476c80 by Florin Spătar in 
branch 'main':
bpo-44959: Add fallback to extension modules with '.sl' suffix on HP-UX 
(GH-27857)
https://github.com/python/cpython/commit/2396fa6537d79554ac694dbd2b0b30eeb3476c80


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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[Roundup Robot]

Change by Roundup Robot :


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nosy: +python-dev
nosy_count: 5.0 -> 6.0
pull_requests: +26316
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/27857

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[Florin Spătar]

Florin Spătar  added the comment:

@mattip
Yes, the patch fixed the issue and the extension module import works.

With the patch applied:

[fspatar@hpux1131:/cust/fspatar/buildtest/hp-ux/11.31/build]> 
/opt/OPSWbuildtools/2.0.5/python/3.8.11.01/bin/python3
Python 3.8.11 (default, Aug  4 2021, 03:13:01) 
[GCC 4.2.4] on hp-ux-pa
Type "help", "copyright", "credits" or "license" for more information.
>>> import _imp
>>> _imp.extension_suffixes()
['.cpython-38.sl', '.sl']
>>> 

Sorry for the confusion; I meant python should search for the following file 
names when extension module _m2crypto is imported (in this order):

_m2crypto.cpython-38.sl
_m2crypto.sl

@vstinner
I'm working on the pull request.

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[mattip]

mattip  added the comment:

I assume you tried and succeeded with your patch. Could you post what 
`_imp.extension_suffixes()` reports after the patch? 

I am a bit confused because you said the following, should the last line be 
`_m2crypto.sl` and not `_m2crypto.sl` ?

my understanding is that python should search for the following file names when 
extension module _m2crypto is imported (in this order):

_m2crypto.cpython-38.sl
_m2crypto.so

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[STINNER Victor]

STINNER Victor  added the comment:

Can you please try to convert your patch into a GitHub pull request?

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[issue44959] EXT_SUFFIX is missing '.sl' on HP-UX

[Florin Spătar]

New submission from Florin Spătar :

On HP-UX, python can no longer find extension modules with the '.sl' suffix.

[fspatar@hpux1131:/cust/fspatar/buildtest/hp-ux/11.31/build]> 
~/tmp/investigation3/old/bin/python3
Python 3.8.11 (default, Aug  3 2021, 06:15:31) 
[GCC 4.2.4] on hp-ux-pa
Type "help", "copyright", "credits" or "license" for more information.
>>> import M2Crypto
Traceback (most recent call last):
  File "/cust/fspatar/buildtest/hp-ux/11.31/build/M2Crypto/m2crypto.py", line 
16, in swig_import_helper
fp, pathname, description = imp.find_module('_m2crypto', 
[dirname(__file__)])
  File "/h/fspatar/tmp/investigation3/old/lib/python3.8/imp.py", line 296, in 
find_module
raise ImportError(_ERR_MSG.format(name), name=name)
ImportError: No module named '_m2crypto'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "", line 1, in 
  File "/cust/fspatar/buildtest/hp-ux/11.31/build/M2Crypto/__init__.py", line 
37, in 
from M2Crypto import (ASN1, AuthCookie, BIO, BN, DH, DSA, EVP, Engine, Err,
  File "/cust/fspatar/buildtest/hp-ux/11.31/build/M2Crypto/ASN1.py", line 15, 
in 
from M2Crypto import BIO, m2, py27plus, six, has_typing
  File "/cust/fspatar/buildtest/hp-ux/11.31/build/M2Crypto/BIO.py", line 9, in 

from M2Crypto import m2, py27plus, six, has_typing
  File "/cust/fspatar/buildtest/hp-ux/11.31/build/M2Crypto/m2.py", line 30, in 

from M2Crypto.m2crypto import *
  File "/cust/fspatar/buildtest/hp-ux/11.31/build/M2Crypto/m2crypto.py", line 
26, in 
_m2crypto = swig_import_helper()
  File "/cust/fspatar/buildtest/hp-ux/11.31/build/M2Crypto/m2crypto.py", line 
18, in swig_import_helper
import _m2crypto
ModuleNotFoundError: No module named '_m2crypto'

This works fine in python 3.8.5

[fspatar@hpux1131:/cust/fspatar/buildtest/hp-ux/11.31/build]> 
/opt/OPSWbuildtools/2.0.5/python/3.8.5.04/bin/python3
Python 3.8.5 (default, Jul 28 2021, 08:38:55) 
[GCC 4.2.4] on hp-ux-pa
Type "help", "copyright", "credits" or "license" for more information.
>>> import M2Crypto

It seems to be related to recent changes from https://bugs.python.org/issue42604

Given the file name is _m2crypto.sl, python 3.8.11 can no longer find it. Based 
on https://www.python.org/dev/peps/pep-3149/#pep-384, my understanding is that 
python should search for the following file names when extension module 
_m2crypto is imported (in this order):

_m2crypto.cpython-38.sl
_m2crypto.so

Python can only load the extension module if the file name is 
_m2crypto.cpython-38.sl

[fspatar@hpux1131:/cust/fspatar/buildtest/hp-ux/11.31/build]> 
~/tmp/investigation3/old/bin/python3
Python 3.8.11 (default, Aug  3 2021, 06:15:31) 
[GCC 4.2.4] on hp-ux-pa
Type "help", "copyright", "credits" or "license" for more information.
>>> import _imp
>>> _imp.extension_suffixes()
['.cpython-38.sl']
>>> 

[fspatar@hpux1131:/cust/fspatar/buildtest/hp-ux/11.31/build]> 
/opt/OPSWbuildtools/2.0.5/python/3.8.5.04/bin/python3
Python 3.8.5 (default, Jul 28 2021, 08:38:55) 
[GCC 4.2.4] on hp-ux-pa
Type "help", "copyright", "credits" or "license" for more information.
>>> import _imp
>>> _imp.extension_suffixes()
['.sl']
>>>

--
components: Extension Modules
files: python-hpux-extension-suffixes.patch
keywords: patch
messages: 399945
nosy: florinspatar, mattip, miss-islington, pablogsal, vstinner
priority: normal
severity: normal
status: open
title: EXT_SUFFIX is missing '.sl' on HP-UX
type: behavior
versions: Python 3.8
Added file: 
https://bugs.python.org/file50227/python-hpux-extension-suffixes.patch

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