[#CONPY-234] mariadb-1.1.5 doesn't build from source on Linux: Missing `packaging` dependency

This commit which uses the non-stdlib packaging library at build time now breaks anyone trying to install on POSIX from source.

/tmp> python -m venv env

/tmp> source ./env/bin/activate.fish

(env) /tmp> pip install mariadb

Collecting mariadb

  Downloading mariadb-1.1.5.tar.gz (81 kB)

     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 81.9/81.9 KB 708.0 kB/s eta 0:00:00

  Preparing metadata (setup.py) ... error

  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.

  │ exit code: 1

  ╰─> [8 lines of output]

      Traceback (most recent call last):

        File "<string>", line 2, in <module>

        File "<pip-setuptools-caller>", line 34, in <module>

        File "/tmp/pip-install-e76pgcey/mariadb_d9442f68620f4d98ba2087f53cd310e9/setup.py", line 12, in <module>

          from mariadb_posix import get_config

        File "/tmp/pip-install-e76pgcey/mariadb_d9442f68620f4d98ba2087f53cd310e9/mariadb_posix.py", line 4, in <module>

          from packaging import version

      ModuleNotFoundError: No module named 'packaging'

      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.

error: metadata-generation-failed

× Encountered error while generating package metadata.

╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.

hint: See above for details.

Fortunately, the fix is easy. I see this commit adding packaging as a runtime dependency only which isn't enough. To add a build-time dependency, create a pyproject.toml containing:

[build-system]

requires = [

  "setuptools",

  "packaging",

Then pip automagically ensures that packaging is downloaded before trying to execute the setup.py.

[CONPY-234] mariadb-1.1.5 doesn't build from source on Linux: Missing `packaging` dependency Created: 2022-11-07 Updated: 2022-11-08 Resolved: 2022-11-08
Status:	Closed
Project:	MariaDB Connector/Python
Component/s:	Build
Affects Version/s:	1.1.5
Fix Version/s:	N/A

[CONPY-234] mariadb-1.1.5 doesn't build from source on Linux: Missing `packaging` dependency Created: 2022-11-07 Updated: 2022-11-08 Resolved: 2022-11-08