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[R][CI] R nightly binary upload broken since github3 to pygithub migration #50532
Description
The r_nightly.yml workflow has been failing since June 19, when #48886 replaced github3 with pygithub in archery.
The upload job crashes during archery crossbow download-artifacts:
File ".../github/Auth.py", line 162, in __init__
assert isinstance(token, str)
AssertionError
The workflow doesn't pass CROSSBOW_GITHUB_TOKEN to the download-artifacts step (
arrow/.github/workflows/r_nightly.yml
Line 82 in 98ee71e
None as the token. The old github3 library handled this gracefully (unauthenticated access), but pygithub's Auth.Token requires an actual string.
Last successful run: June 18. Every run since June 19 has failed: https://github.com/apache/arrow/actions/workflows/r_nightly.yml
This means no R nightly binaries have been uploaded for a month, which affects anyone trying to install the dev version of the R package on Windows (they get "No nightly binaries were found" and can't build from source).
The comment_bot.yml workflow is unaffected because it explicitly passes the token.
Activity
[-][R][Archery] R nightly binary upload broken since github3 to pygithub migration[/-][+][R] R nightly binary upload broken since github3 to pygithub migration[/+][-][R] R nightly binary upload broken since github3 to pygithub migration[/-][+][R][CI] R nightly binary upload broken since github3 to pygithub migration[/+]GH-50532: [R][CI] R nightly binary upload broken since github3 to pyg…
raulcd commentedon Jul 20, 2026
Issue resolved by pull request 50533
#50533