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[BREAKING] Python: Checkpoint refactor: encode/decode, checkpoint format, etc (#3744)

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* WIP: Checkpoint refactor: encode/decode, checkpoint format, etc

* WIP: Remove workflow ID in checkpoints

* Refactor checkpointing

* Add get_latest tests

* Increase test coverage

* Fix formatting

* Fix unit tests

* Fix samples

* fix unit tests

* fix pipeline

* Copilot comments

* Fix tests

* Fix more tests

* Address comments part 1

* Address comments part 2

* Comments
This commit is contained in:
Tao Chen
2026-02-11 12:57:15 -08:00
committed by GitHub
Unverified
parent a2a672b687
commit 7db6c4ab4e
43 changed files with 3335 additions and 2075 deletions
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python/samples/getting_started/orchestrations/magentic_checkpoint.py
+6 -15
View File
@@ -2,6 +2,7 @@
import asyncio
import json
from datetime import datetime
from pathlib import Path
from typing import cast
@@ -115,15 +116,11 @@ async def main() -> None:
print("No plan review request emitted; nothing to resume.")
return
checkpoints = await checkpoint_storage.list_checkpoints(workflow.id)
if not checkpoints:
resume_checkpoint = await checkpoint_storage.get_latest(workflow_name=workflow.name)
if not resume_checkpoint:
print("No checkpoints persisted.")
return
resume_checkpoint = max(
checkpoints,
key=lambda cp: (cp.iteration_count, cp.timestamp),
)
print(f"Using checkpoint {resume_checkpoint.checkpoint_id} at iteration {resume_checkpoint.iteration_count}")
# Show that the checkpoint JSON indeed contains the pending plan-review request record.
@@ -180,7 +177,7 @@ async def main() -> None:
def _pending_message_count(cp: WorkflowCheckpoint) -> int:
return sum(len(msg_list) for msg_list in cp.messages.values() if isinstance(msg_list, list))
all_checkpoints = await checkpoint_storage.list_checkpoints(resume_checkpoint.workflow_id)
all_checkpoints = await checkpoint_storage.list_checkpoints(workflow_name=resume_checkpoint.workflow_name)
later_checkpoints_with_messages = [
cp
for cp in all_checkpoints
@@ -188,10 +185,7 @@ async def main() -> None:
]
if later_checkpoints_with_messages:
post_plan_checkpoint = max(
later_checkpoints_with_messages,
key=lambda cp: (cp.iteration_count, cp.timestamp),
)
post_plan_checkpoint = max(later_checkpoints_with_messages, key=lambda cp: datetime.fromisoformat(cp.timestamp))
else:
later_checkpoints = [cp for cp in all_checkpoints if cp.iteration_count > resume_checkpoint.iteration_count]
@@ -199,10 +193,7 @@ async def main() -> None:
print("\nNo additional checkpoints recorded beyond plan approval; sample complete.")
return
post_plan_checkpoint = max(
later_checkpoints,
key=lambda cp: (cp.iteration_count, cp.timestamp),
)
post_plan_checkpoint = max(later_checkpoints, key=lambda cp: datetime.fromisoformat(cp.timestamp))
print("\n=== Stage 3: resume from post-plan checkpoint ===")
pending_messages = _pending_message_count(post_plan_checkpoint)
print(