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jonseymour
Asked: 2024-11-20 08:45:32 +0800 CST

What is the canonical way to run pytest with Python 3.11 in Amazon Linux 2023 containers?

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AWS provides support for installing python 3.11 in Amazon Linux 2023 containers.

However it isn't at all obvious how you install and run a compatible pytest in this case.

For example, if you do this:

dnf install -y pytest

the version of pytest installed is the 3.9 version which is compatible with the so-called system version of Python which is 3.9 but is not compatible with python3.11 installed via the supported method.

So what is the canonical way for installing a version of pytest which is compatible with the python3.11 as installed in the manner recommended by AWS?

linux

1 Answers

  1. Best Answer

    The best way is probably to set up a 3.11 virtual environment and install pytest into that environment:

    bash-5.2# python3.11 -m venv .venv
bash-5.2# . .venv/bin/activate
(.venv) bash-5.2# pip install pytest
Collecting pytest
.
.
.
(.venv) bash-5.2#

    Now running pytest gets you pytest for Python 3.11. You will of course want to install any other dependencies into the virtual environment; a common setup is to put runtime dependencies in requirements.txt and test requirements (like pytest) into test-requirements.txt, so that you setup process looks like:

    bash-5.2# python3.11 -m venv .venv
bash-5.2# . .venv/bin/activate
(.venv) bash-5.2# pip install -r requirements.txt
(.venv) bash-5.2# pip install -r test-requirements.txt
(.venv) bash-5.2# pytest
.
.
.

    Alternately, you can install a version of pip to go along with your python3.11 install:

    bash-5.2# dnf install python3.11-pip

    And then globally install pytest using pip:

    bash-5.2# pip3.11 install pytest
Collecting pytest
  Using cached pytest-8.3.3-py3-none-any.whl (342 kB)
Collecting iniconfig
  Using cached iniconfig-2.0.0-py3-none-any.whl (5.9 kB)
Collecting packaging
  Using cached packaging-24.2-py3-none-any.whl (65 kB)
Collecting pluggy<2,>=1.5
  Using cached pluggy-1.5.0-py3-none-any.whl (20 kB)
Installing collected packages: pluggy, packaging, iniconfig, pytest
Successfully installed iniconfig-2.0.0 packaging-24.2 pluggy-1.5.0 pytest-8.3.3
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv

    But as the warning says, installing things globally like this can lead to conflicts.

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