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allow python path to be modified with an environment variable

See original GitHub issue

Observed behavior

Currently there is no way to use external settings files or install additional kolibri plugins with a PEX files.

Expected behavior

We can add support for a new environment variable, e.g. KOLIBRI_ADDITIONAL_PY. When set, this value will be prepended to the internal python path, allowing additional packages to be referenced by the PEX.

User-facing consequences

Without this, have to choose between being able to use external packages or having a portable, downloadable executable.

Context

0.11.x

cc @jamalex @aronasorman

Issue Analytics

State:
Created 5 years ago
Comments:9 (9 by maintainers)

Top GitHub Comments

1reaction

indirectlylitcommented, Nov 16, 2019

This was resolved during investigation of using the Sentry SDK in https://github.com/learningequality/kolibri/pull/5773

The key here was to set the environment variable PEX_INHERIT_PATH=1: https://pex.readthedocs.io/en/stable/api/index.html#pex.variables.Variables.PEX_INHERIT_PATH

This lets the pex inherit the Python path of the active Python environment.

0reactions

indirectlylitcommented, Dec 20, 2019

setting the variable PEX_INHERIT_PATH=1 is necessary for any situation where a user has installed using the pex and tries to enable an external plugin.

We don’t publicly document plugin enable/disable functionality because it’s not stable yet, but when we do we’ll need to add this as a note. Opened a tracker issue here: https://github.com/learningequality/kolibri-docs/issues/149

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