Remove python3.10-distutils and python3.10-venv from Dockerfile#539
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Remove python3.10-distutils and python3.10-venv from Dockerfile#539
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These packages have been removed from the deadsnakes PPA for Ubuntu Focal and are no longer available, causing the Docker build to fail. Neither package is needed: - pip is installed via get-pip.py which doesn't require distutils - virtualenv is installed via pip, replacing the need for the venv package Also fix legacy ENV format warning (ENV key value -> ENV key=value). https://claude.ai/code/session_01UWALAV2tXVZ3pDtg88Npo9
Python 3.10 is no longer available in the deadsnakes PPA for Ubuntu Focal — the package installs but provides no binary, causing the Docker build to fail at the update-alternatives step. Switch all python3.10 references to python3.12, which is actively maintained in the deadsnakes PPA. https://claude.ai/code/session_01UWALAV2tXVZ3pDtg88Npo9
The deadsnakes PPA has dropped Ubuntu Focal (20.04) support entirely, making it impossible to install Python 3.10 (or any other version) from the PPA. Ubuntu Jammy ships with Python 3.10 natively, removing the need for the deadsnakes PPA altogether. Changes: - Base image: ubuntu:focal-20230412 -> ubuntu:jammy - Replace deadsnakes PPA with Mozilla Team PPA (Firefox is snap-only in Jammy by default, need the PPA for deb-based install in Docker) - Add apt pinning to prefer Firefox from Mozilla PPA - Use native python3.10 package (no regex escaping needed) - Revert python3.12 references back to python3.10 https://claude.ai/code/session_01UWALAV2tXVZ3pDtg88Npo9
mmore500
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Feb 9, 2026
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bumps ubuntu version to track deadsnakes deprecation, makes change to update firefox install (on jammy, this is by snap unless ppa added), makes syntax change to modernize dockerfile
lgtm, and successfully fixes CI
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These packages have been removed from the deadsnakes PPA for Ubuntu
Focal and are no longer available, causing the Docker build to fail.
Neither package is needed:
Also fix legacy ENV format warning (ENV key value -> ENV key=value).
https://claude.ai/code/session_01UWALAV2tXVZ3pDtg88Npo9