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[4.0.4][strict] usage of the python plugin forces the python3 interpreter to be shipped in the snap

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Metadata

Project
snapcraft (launchpad)
Number
#1882994
Type
issue
State
closed
Author
~dmitriis
Labels
—
Created
Updated
Closed

Current evaluation

⚠️ This summary may be outdated — the issue content or evaluation prompts have changed since this evaluation was made.

Closed without resolution. The python plugin forces python3 into the snap, causing runtime path conflicts. Likely abandoned or superseded by newer snapcraft plugin versions.

Suggested action: —

No scores available.

Issue body

The python plugin uses the following command to set up a venv in the installation directory: https://github.com/snapcore/snapcraft/blob/4.0.4/snapcraft/plugins/v2/python.py#L117-L120 ${SNAPCRAFT_PYTHON_INTERPRETER}" -m venv ${SNAPCRAFT_PYTHON_VENV_ARGS} "${SNAPCRAFT_PART_INSTALL} This forces python3 to be copied into the snap without any explicit configuration: snapcraft-microstack # stat parts/openstack-projects/install/bin/python3   File: parts/openstack-projects/install/bin/python3 -> /root/stage/bin/python3   Size: 23 Blocks: 0 IO Block: 4096 symbolic link Device: 10fc80h/1113216d Inode: 7210747 Links: 1 Access: (0777/lrwxrwxrwx) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2020-06-10 17:27:10.515782934 +0000 Modify: 2020-06-10 17:27:10.511782914 +0000 Change: 2020-06-10 17:27:10.511782914 +0000  Birth: - snapcraft-microstack # rm parts/openstack-projects/install/bin/python3 snapcraft-microstack # "${SNAPCRAFT_PYTHON_INTERPRETER}" -m venv ${SNAPCRAFT_PYTHON_VENV_ARGS} "${SNAPCRAFT_PART_INSTALL}" snapcraft-microstack # stat parts/openstack-projects/install/bin/python3   File: parts/openstack-projects/install/bin/python3 -> /root/stage/bin/python3   Size: 23 Blocks: 0 IO Block: 4096 symbolic link Device: 10fc80h/1113216d Inode: 7210747 Links: 1 Access: (0777/lrwxrwxrwx) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2020-06-10 17:27:28.487873571 +0000 Modify: 2020-06-10 17:27:28.483873551 +0000 Change: 2020-06-10 17:27:28.483873551 +0000  Birth: - Meanwhile, I would like to avoid this and the one shipped with core20. And at runtime the lack of that leads to subtle failures like this: # a shell in the snap environment: # sha256sum /usr/bin/python3.8 3fe2b9781ccb82b2a143cdcac2630ff25a74e049d5f34d6c10edd0598ccb705f /usr/bin/python3.8 # sha256sum /snap/microstack/x11/bin/python3 3fe2b9781ccb82b2a143cdcac2630ff25a74e049d5f34d6c10edd0598ccb705f /snap/microstack/x11/bin/python3 # python3.8 Python 3.8.2 (default, Apr 27 2020, 15:53:34) [GCC 9.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import keystone Traceback (most recent call last):   File "<stdin>", line 1, in <module> ModuleNotFoundError: No module named 'keystone' >>> import sys >>> sys.path ['', '/usr/lib/python38.zip', '/usr/lib/python3.8', '/usr/lib/python3.8/lib-dynload', '/usr/lib/python3/dist-packages'] # python3 Python 3.8.2 (default, Apr 27 2020, 15:53:34) [GCC 9.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import keystone >>> import sys >>> sys.path ['', '/usr/lib/python38.zip', '/usr/lib/python3.8', '/usr/lib/python3.8/lib-dynload', '/snap/microstack/x11/lib/python3.8/site-packages'] # outside the confined environment: $ sha256sum /snap/core20/current/usr/bin/python3 3fe2b9781ccb82b2a143cdcac2630ff25a74e049d5f34d6c10edd0598ccb705f /snap/core20/current/usr/bin/python3 $ sha256sum /snap/core20/current/bin/python3 3fe2b9781ccb82b2a143cdcac2630ff25a74e049d5f34d6c10edd0598ccb705f /snap/core20/current/bin/python3 $ sha256sum /snap/microstack/current/bin/python3 05d75e4d16006f760b67b0901587f0f94dace6b7231e1351c1349ecbb0ebaf4c /snap/microstack/current/bin/python3

Evaluation history

Date Model Scores Action Summary
qwen/qwen3.6-35b-a3b — — Closed without resolution. The python plugin forces python3 into the snap, causing runtime path conflicts. Likely abandoned or superseded by newer snapcraft plugin versions.
qwen/qwen3.6-35b-a3b — — Closed without resolution due to inactivity. The python plugin forced python3 inclusion, causing strict confinement and runtime path conflicts. No fix or workaround was implemented, and the report was abandoned.
qwen/qwen3.6-35b-a3b — — Closed without resolution. The Python plugin forces the python3 interpreter into snaps, causing runtime import failures. With zero comments and no follow-up, the issue was abandoned.
qwen3.6-35b-a3b-mtp-q6 — — Closed without resolution or comments. The python plugin forcing automatic python3 interpreter inclusion was likely abandoned or superseded by newer snapcraft versions and core20 base updates.

Update history

No update history recorded yet.

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