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DaemonThreadPoolExecutor compatibility fixes for Python 3.14

NousResearch/hermes-agent · cluster 58596 · agent

Data as of

3 open items. Fix merged in #112209. Check it covers your case.

The short answer

2open issues
1open PR
14items grouped
Known?
Yes. 14 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #112209. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this partially resolved, deciding PR #112209. That is separate from the fix event.
Still open
2 issues and 1 PR.

Multiple reports and proposed fixes for DaemonThreadPoolExecutor breaking on Python 3.14 due to internal ThreadPoolExecutor changes, specifically the removal or restructuring of the _initializer attribute and _worker signature.

Open issues2

  • Issue#59896[Bug] DaemonThreadPoolExecutor breaks on Python 3.14 — parallel tool calls fail with AttributeError
  • Issue#63769bug(delegation): saturated child pool crashes synchronous fallback with missing _initializer

Open PRs1

  • PR#95364fix(tools): DaemonThreadPoolExecutor compatibility with Python 3.14

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

  • #112209 fix(tools): daemon pool spawns workers on Python 3.14 (#58596, #111813, salvage #111814)

    merged to main

    files: contributors/emails/[redacted:email], contributors/emails/[redacted:email], tests/tools/test_daemon_pool.py, tools/daemon_pool.py

9 PRs closed without merging

From the close comments: duplicate 5 · superseded by another PR 3 · merged via another change 1

  • #58598 fix(tools): adapt DaemonThreadPoolExecutor for Python 3.14 _worker signature · duplicate → #57459
  • #58699 fix(daemon-pool): support Python 3.14 _worker signature change (#58596) · merged via another change → 4432bcc, #112209
  • #59157 fix(daemon_pool): guard against missing _initializer attr on Python 3.14 · duplicate → #57459, #58598, #47634
  • #59897 fix(tools): DaemonThreadPoolExecutor Python 3.14 compatibility · duplicate → #57459, #59897, #59896, #58596
  • #63777 fix(daemon_pool): handle missing initializer in _adjust_thread_count · superseded by another PR → #57459
Show 4 more
  • #63780 fix(daemon_pool): support Python 3.14 ThreadPoolExecutor WorkerContext signature · duplicate → #57459
  • #65182 fix(daemon_pool): support CPython 3.14 ThreadPoolExecutor internals · superseded by another PR → #58699
  • #72955 fix(tools): spawn daemon workers with the 3.14 worker context · duplicate → #65182, #57459
  • #76756 fix(tools): support Python 3.14 worker context in DaemonThreadPoolExecutor (#76621) · superseded by another PR → #65182, #70873, #61224, #63780, #63777, #76621, #58596
Closed issues · 1
  • Closed#58596DaemonThreadPoolExecutor crashes on Python 3.14: `_initializer` attribute removed
How this cluster was grouped
  • Link evidence (partly structural links): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.
  • Members outside that structural core may belong to a different underlying problem.
  • Pairwise link density 0.14: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. 1.00 means every pair is linked.

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At a glance

Subsystem
agent
Merged PRs
#112209
Closed issues
1
Attempts
9 PRs closed without merging
Fix link checked
16 Sep 2026

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