If you never use `mach python-test`, you can stop reading now. At the latest version of mozilla-central, `mach python-test` no longer takes a `--python` command-line argument. If you're used to using it, you have alternatives:
* If you're used to doing `./mach python-test --python 3 ...`, you can stop passing `--python 3` entirely. Python 3 is the default. * If you're used to doing `./mach python-test --python 2 ...`, you can do `MACH_PY2=1 ./mach python-test ...` instead. The MACH_PY2 environment variable will tell mach to use Python 2 instead. (MACH_PY2 only works with python-test, so don't just unconditionally set it in your bashrc or something.) * If you're used to doing `./mach python-test --python $PATH_TO_A_PYTHON_BINARY ...`, you can do `$PATH_TO_A_PYTHON_BINARY ./mach python-test ...` instead. If you're wondering why this change was made: under the hood, python-test used to use pipenv and would pass the --python command-line argument to pipenv when creating its virtualenv. pipenv was determined to be too heavyweight for this purpose, and migrating away from it significantly reduced our maintenance burden. As a nice side effect, you'll notice that the startup time of `mach python-test` is significantly improved. If you have any questions about this, please let me know. Ricky _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
