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kube_config (aio): replace deprecated utcnow/utcfromtimestamp - #2779

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Hisernberg:fix-kubeconfig-utcnow
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Hisernberg wants to merge 3 commits into
kubernetes-client:masterfrom
Hisernberg:fix-kubeconfig-utcnow

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@Hisernberg

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datetime.utcnow() and datetime.utcfromtimestamp() are deprecated since Python 3.12 and emit DeprecationWarning.

  • Token-expiry comparison in _is_expired: utcnow().replace(tzinfo=UTC) becomes the equivalent datetime.datetime.now(datetime.timezone.utc).
  • The timestamp-based _is_expired call keeps passing a naive datetime exactly as before (fromtimestamp(expires, timezone.utc).replace(tzinfo=None)), so parse_rfc3339's input type is unchanged.
  • The examples_asyncio restartedAt annotation switches to the tz-aware now().

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Adding the "do-not-merge/release-note-label-needed" label because no release-note block was detected, please follow our release note process to remove it.

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@kubernetes-prow kubernetes-prow Bot added the do-not-merge/release-note-label-needed Indicates that a PR should not merge because it's missing one of the release note labels. label Nov 12, 2026
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@kubernetes-prow kubernetes-prow Bot added the needs-kind Indicates a PR lacks a `kind/foo` label and requires one. label Nov 12, 2026
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Welcome @Hisernberg!

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@kubernetes-prow kubernetes-prow Bot added the cncf-cla: no Indicates the PR's author has not signed the CNCF CLA. label Nov 12, 2026
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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Hisernberg
Once this PR has been reviewed and has the lgtm label, please assign roycaihw for approval. For more information see the Code Review Process.

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@kubernetes-prow
kubernetes-prow Bot requested review from roycaihw and yliaog November 12, 2026 15:41
@kubernetes-prow kubernetes-prow Bot added the size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. label Nov 12, 2026
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