2026.05.20 fix compressed_vipc.py by using pyzmq for zmq client#38072
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zhangxu1994ye wants to merge 5 commits into
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2026.05.20 fix compressed_vipc.py by using pyzmq for zmq client#38072zhangxu1994ye wants to merge 5 commits into
zhangxu1994ye wants to merge 5 commits into
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Process replay diff reportReplays driving segments through this PR and compares the behavior to master. ✅ 0 changed, 66 passed, 0 errors |
added 4 commits
May 21, 2026 14:25
…ing return type annotation, and using idiomatic Python syntax - Remove unused 'capnp' import - Update ZmqSubSocket.recv() return type to bytes | None (can return None on timeout) - Wrap multi-line print statement with parentheses for cleaner formatting - Use set comprehension syntax instead of set() with generator
…resolve ISC002 implicit string concatenation and UP034 extraneous parentheses lint errors.
…n, and extraneous parentheses in compressed_vipc by using explicit string concatenation and splitting debug print message into multiple lines.
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Summary
Fix the runtime error in tools/compressed_vipc.py caused by the missing zmq implementation.
Problem Description
Running tools/compressed_vipc.py results in an error (see attached screenshot below).
After investigation, I found that the script imports cereal.messaging, which internally uses from msgq.ipc_pyx import SubSocket — a C++ implementation. However, the underlying zmq_impl has been removed. Checking the git history, it appears that the zmq integration was stripped out of msgq in pursuit of zero dependencies, which caused SubSocket to stop working.
Changes Made
Modified the communication layer in tools/compressed_vipc.py:
Verification Result
The modified script runs successfully, and all three camera feeds are now visible in watch3.py.