[eersnington]

Python output without a trailing newline was lost, and blank lines were dropped.

python3 -c …	main	This PR
print('a'); print(); print('b', end='')	a\n	a\n\nb
sys.stderr.write('err')	nothing	err

• The runner used Pyodide's line-batched stdout and stderr handlers, which only forward output at a newline, and its stdout filter dropped blank lines and appended a newline to every write.
• stdout and stderr now go through Pyodide's raw write mode, byte for byte. fix(execution): give Python SystemExit Linux exit codes #2069's main runner flushes Python's own buffers at exit.
• The filter's remaining job, hiding "Loading micropip" progress, moves to the source: runner-owned loadPackage calls pass a silent messageCallback. Load errors still reach stderr.

[github-actions]

📟 Pip-Boy · dce29ea

📦 Packages

Skipped: this PR doesn't change any published package.

🧹 Rust dependencies · cargo deny + cargo shear

check	new in this PR	fixed	existing on base
advisories	✅ 0	0	25
licenses	✅ 0	0	0
sources	✅ 0	0	0
bans	✅ 0	0	0
unused	✅ 0	0	16

🦀 Binaries · publish Dockerfiles, --release

Base: main@9413c84, the merge base.

artifact	npm @latest	base	this PR	Δ vs base
agentos-native-sidecar linux-x64-gnu	143.6 MB	143.7 MB	143.7 MB	+104 B (+0.0%)

⏱ Timing

job	wall time	slowest step
changes	27s	checkout · 24s
zizmor	11s	checkout · 3s
hygiene	1m04s	checkout · 24s
native · linux-x64-gnu	10m28s	Build with the publish Dockerfile · 9m50s
⏭ footprint	—	skipped
⏭ self-test	—	skipped
report	22s	setup-node · 7s

🔭 Full CI trace for this commit

One OpenTelemetry trace of CI and Pip-Boy for dce29ea: every job and step, with the sizes above attached. Run after CI finishes.

pnpm install --frozen-lockfile --filter 'pipboy...'
pnpm --filter pipboy pipboy trace --sha dce29eac3c18d3b12d6e8b294f60aff30f67cff4

Add --otlp <url> to send it to any OTLP/HTTP collector.

Agent instruction: From a rivet-dev/agentos checkout, run the commands above, then read the trace file the last command prints. List the slowest jobs and steps and explain where CI time went.