test rstream against python 3.11

[DanielePalaia]

Currently we are using python 3.9.

It seems like there can be few issues with Python 3.11.

Scope of this task is to explore / see potential issues and try to correct them.

Also to think on a possible cross-testing Python3.9 and 3.11

[DanielePalaia]

See #100

[DanielePalaia]

it seems to be an issue just with pytest when updating to Python 3.11:

Running poetry pytest I get

Traceback (most recent call last):
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/py/_vendored_packages/apipkg/__init__.py", line 145, in __makeattr
    modpath, attrname = self.__map__[name]
                        ~~~~~~~~~~~~^^^^^^
KeyError: '__spec__'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/bin/pytest", line 5, in <module>
    from pytest import console_main
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/pytest/__init__.py", line 5, in <module>
    from _pytest._code import ExceptionInfo
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/_pytest/_code/__init__.py", line 2, in <module>
    from .code import Code
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/_pytest/_code/code.py", line 42, in <module>
    from _pytest._io import TerminalWriter
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/_pytest/_io/__init__.py", line 1, in <module>
    from .terminalwriter import get_terminal_width
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/_pytest/_io/terminalwriter.py", line 10, in <module>
    from _pytest.compat import final
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/_pytest/compat.py", line 44, in <module>
    LEGACY_PATH = py.path. local
                  ^^^^^^^^^^^^^^
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/py/_vendored_packages/apipkg/__init__.py", line 152, in __makeattr
    result = importobj(modpath, attrname)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/py/_vendored_packages/apipkg/__init__.py", line 72, in importobj
    module = __import__(modpath, None, None, ['__doc__'])
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1138, in _find_and_load_unlocked
  File "/Users/dpalaia/Library/Caches/pypoetry/virtualenvs/rstream-kGMGy7PV-py3.11/lib/python3.11/site-packages/py/_vendored_packages/apipkg/__init__.py", line 150, in __makeattr
    raise AttributeError(name)
AttributeError: __spec__

[DanielePalaia]

it seems to be similar to: pytest-dev/apipkg#30

Upgrading pytest to the last 7.4.0 doesn't seem to solve the issue.

[DanielePalaia]

Hey @qweeze do you have any advise on this? it seems like an issue running poetry pytest when upgrading Python to 3.11
If we fix this we can try to upgrade all the other libraries too with a poetry update

[qweeze]

Upgrading pytest to the last 7.4.0 doesn't seem to solve the issue.

The problem is in the package py==1.10.0 which is pytest's dependency. Latest pytest==7.4.0 doesn't use it at all, so if you upgrade it via poetry it should remove this package:

$ python --version
Python 3.11.0

$ poetry add --group dev pytest@latest

Package operations: 0 installs, 1 update, 2 removals

  • Removing attrs (21.2.0)
  • Removing py (1.10.0)
  • Updating pytest (6.2.4 -> 7.4.0)

[DanielePalaia]

Implemented here: #110