[issue41476] test_zoneinfo fails if the _lzma module is missing

[STINNER Victor]

Change by STINNER Victor :


--
resolution:  -> duplicate
stage:  -> resolved
status: open -> closed
superseder:  -> test_zoneinfo fails when lzma module is unavailable

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[issue41476] test_zoneinfo fails if the _lzma module is missing

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

Duplicate of https://bugs.python.org/issue41371

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nosy: +xtreak

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[issue41476] test_zoneinfo fails if the _lzma module is missing

[STINNER Victor]

STINNER Victor  added the comment:

See also bpo-41477: test_genericalias fails if ctypes is missing.

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[issue41476] test_zoneinfo fails if the _lzma module is missing

[STINNER Victor]

New submission from STINNER Victor :

Error when _lzma extension is missing:

test test_zoneinfo crashed -- Traceback (most recent call last):

 
  File "/home/vstinner/python/master/Lib/test/libregrtest/runtest.py", line 
272, in _runtest_inner
refleak = _runtest_inner2(ns, test_name)
  
  File "/home/vstinner/python/master/Lib/test/libregrtest/runtest.py", line 
223, in _runtest_inner2 
 
the_module = importlib.import_module(abstest)   

 
  File "/home/vstinner/python/master/Lib/importlib/__init__.py", line 126, in 
import_module   
   
return _bootstrap._gcd_import(name[level:], package, level) 

 
  File "", line 1030, in _gcd_import   

 
  File "", line 1007, in _find_and_load
  File "", line 986, in _find_and_load_unlocked

 
  File "", line 680, in _load_unlocked 

 
  File "", line 790, in exec_module   

 
  File "", line 228, in _call_with_frames_removed  

  File "/home/vstinner/python/master/Lib/test/test_zoneinfo/__init__.py", line 
1, in   
  
from .test_zoneinfo import *

 
  File "/home/vstinner/python/master/Lib/test/test_zoneinfo/test_zoneinfo.py", 
line 9, in 
import lzma 

 
  File "/home/vstinner/python/master/Lib/lzma.py", line 27, in  

 
from _lzma import * 

 
ModuleNotFoundError: No module named '_lzma'


The minimum fix is to skip test_zoneinfo is lzma is missing. For example, 
replace "import lzma" with "lzma = support.import_helper.import_module('lzma')".

--
components: Tests
messages: 374819
nosy: p-ganssle, vstinner
priority: normal
severity: normal
status: open
title: test_zoneinfo fails if the _lzma module is missing
versions: Python 3.10

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