pytest marker ignored - Githubissues

I have several tests which need import xlwings; the package is not available on Linux machines so I mark them with needsxw. In azure-pipelines.xml I have:

- script: |
    pip install pytest pytest-cov pytest-azurepipelines
    python -m pytest -m "not needsxw" --cov=. --cov-report=xml --cov-report=html
  displayName: 'Test with pytest'

however the build still fails. How can I have Azure ignore the tests with a given marker ?

Example of failing test:

@pytest.mark.needsxw
class TestToy(TestCase):

Output:

2021-04-14T09:53:02.0497514Z ##[section]Starting: Test with pytest
2021-04-14T09:53:02.0651740Z ==============================================================================
2021-04-14T09:53:02.0652070Z Task         : Command line
2021-04-14T09:53:02.0652783Z Description  : Run a command line script using Bash on Linux and macOS and cmd.exe on Windows
2021-04-14T09:53:02.0653055Z Version      : 2.182.0
2021-04-14T09:53:02.0653256Z Author       : Microsoft Corporation
2021-04-14T09:53:02.0653556Z Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/utility/command-line
2021-04-14T09:53:02.0653921Z ==============================================================================
2021-04-14T09:53:04.9307495Z Generating script.
2021-04-14T09:53:04.9319416Z ========================== Starting Command Output ===========================
2021-04-14T09:53:04.9320989Z ##[command]"C:\Windows\system32\cmd.exe" /D /E:ON /V:OFF /S /C "CALL "D:\a\_temp\13ef6923-1927-47a7-beea-7dfce92d8600.cmd""
2021-04-14T09:53:05.3509712Z Requirement already satisfied: pytest in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (6.2.3)
2021-04-14T09:53:05.4922285Z Collecting pytest-cov
2021-04-14T09:53:05.5825788Z   Downloading pytest_cov-2.11.1-py2.py3-none-any.whl (20 kB)
2021-04-14T09:53:05.6711325Z Collecting pytest-azurepipelines
2021-04-14T09:53:05.6868153Z   Downloading pytest_azurepipelines-0.8.0-py3-none-any.whl (6.2 kB)
2021-04-14T09:53:05.7670785Z Requirement already satisfied: packaging in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (from pytest) (20.9)
2021-04-14T09:53:05.7679576Z Requirement already satisfied: iniconfig in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (from pytest) (1.1.1)
2021-04-14T09:53:05.7687472Z Requirement already satisfied: attrs>=19.2.0 in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (from pytest) (20.3.0)
2021-04-14T09:53:05.7695046Z Requirement already satisfied: py>=1.8.2 in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (from pytest) (1.10.0)
2021-04-14T09:53:05.7700729Z Requirement already satisfied: toml in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (from pytest) (0.10.2)
2021-04-14T09:53:05.7713583Z Requirement already satisfied: atomicwrites>=1.0 in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (from pytest) (1.4.0)
2021-04-14T09:53:05.7723018Z Requirement already satisfied: pluggy<1.0.0a1,>=0.12 in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (from pytest) (0.13.1)
2021-04-14T09:53:05.7730651Z Requirement already satisfied: colorama in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (from pytest) (0.4.4)
2021-04-14T09:53:06.3306437Z Collecting coverage>=5.2.1
2021-04-14T09:53:06.3465580Z   Downloading coverage-5.5-cp38-cp38-win_amd64.whl (211 kB)
2021-04-14T09:53:06.4224833Z Requirement already satisfied: pyparsing>=2.0.2 in c:\hostedtoolcache\windows\python\3.8.9\x64\lib\site-packages (from packaging->pytest) (2.4.7)
2021-04-14T09:53:06.8486706Z Installing collected packages: coverage, pytest-cov, pytest-azurepipelines
2021-04-14T09:53:07.3072825Z Successfully installed coverage-5.5 pytest-azurepipelines-0.8.0 pytest-cov-2.11.1
2021-04-14T09:53:15.4936089Z ============================= test session starts =============================
2021-04-14T09:53:15.4936932Z platform win32 -- Python 3.8.9, pytest-6.2.3, py-1.10.0, pluggy-0.13.1
2021-04-14T09:53:15.4937606Z rootdir: D:\a\1\s, configfile: pytest.ini
2021-04-14T09:53:15.4938057Z plugins: anyio-2.2.0, azurepipelines-0.8.0, cov-2.11.1
2021-04-14T09:53:15.4938518Z collected 22 items / 3 errors / 19 selected
2021-04-14T09:53:15.4971019Z ##[warning]invalid escape sequence \ 
2021-04-14T09:53:15.4981687Z ##[warning]invalid escape sequence \ 
2021-04-14T09:53:15.4982809Z ##[warning]invalid escape sequence \ 
2021-04-14T09:53:15.4983786Z ##[warning]invalid escape sequence \ 
2021-04-14T09:53:16.9908013Z Result Attachments will be stored in LogStore
2021-04-14T09:53:17.0182557Z Run Attachments will be stored in LogStore
2021-04-14T09:53:17.0737439Z ##[error]3 test(s) failed, 22 test(s) collected.
2021-04-14T09:53:17.0768999Z Reading code coverage summary from 'D:\a\1\s\coverage.xml'
2021-04-14T09:53:17.2006345Z 
2021-04-14T09:53:17.2006796Z =================================== ERRORS ====================================
2021-04-14T09:53:17.2012753Z ________________ ERROR collecting mrlib/toy/tests/test_toy.py _________________
2021-04-14T09:53:17.2013213Z ImportError while importing test module 'D:\a\1\s\mrlib\toy\tests\test_toy.py'.
2021-04-14T09:53:17.2013693Z Hint: make sure your test modules/packages have valid Python names.
2021-04-14T09:53:17.2014195Z Traceback:
2021-04-14T09:53:17.2014905Z C:\hostedtoolcache\windows\Python\3.8.9\x64\lib\importlib\__init__.py:127: in import_module
2021-04-14T09:53:17.2015601Z     return _bootstrap._gcd_import(name[level:], package, level)
2021-04-14T09:53:17.2015998Z mrlib\toy\tests\test_toy.py:4: in <module>
2021-04-14T09:53:17.2016348Z     from mrlib.toy.toy import make_double, make_total
2021-04-14T09:53:17.2017103Z mrlib\toy\toy.py:2: in <module>
2021-04-14T09:53:17.2017582Z     import xlwings as xw
2021-04-14T09:53:17.2017930Z E   ModuleNotFoundError: No module named 'xlwings'

Azure / pytest-azurepipelines

pytest marker ignored #51