packages.txt:build/common_virtualenv_packages.txt
# glean-sdk may not be installable if a wheel isn't available
# and it has to be built from source.
pypi-optional:glean-sdk==40.0.0:telemetry will not be collected
# Mach gracefully handles the case where `psutil` is unavailable.
# We aren't (yet) able to pin packages in automation, so we have to
# support down to the oldest locally-installed version (5.4.2).
pypi-optional:psutil>=5.4.2,<=5.8.0:telemetry will be missing some data
pypi-optional:zstandard>=0.11.1,<=0.16.0:zstd archives will not be possible to extract