202604 actions update#14
Open
PatLittle wants to merge 4 commits into
Open
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
What’s going wrong in your workflow
❌ python-version: '3.x'
This line is the root cause:
YAMLpython-version: '3.x'Show more lines
What it actually means in GitHub Actions:
“Install the latest available Python, including pre‑releases.”
Right now, that is Python 3.14.4, which:
Has no binary wheels for numpy / pandas / matplotlib
Forces source compilation
Causes pandas to hard‑fail (as you saw)
This behavior is documented and expected.
✅ The correct fix (industry‑standard)
You must pin Python to a stable, supported version:
✅ Python 3.12 (recommended)
✅ Python 3.11 (also safe)
✅ Corrected workflow (copy‑paste ready)
This version:
Pins Python 3.12
Guarantees wheel installs
Avoids source builds
Runs faster
❌ Why 3.x is unsafe
YAMLpython-version: '3.x'Show more lines
What this actually means in actions/setup-python:
“Install the latest available Python, including prereleases.”
So when Python 3.14 became available:
GitHub Actions started selecting 3.14
Wheels disappeared
Native compilation kicked in
Pandas failed (exactly what you saw)
✅ This behavior is expected and documented
❌ It is not what most people intuitively mean by “stable”