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Read gzip-compressed App output - #15
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MoveApps hands the cargo-agent a path without a file extension, so pandas cannot infer the compression from the file name. Determine it from the first two bytes and pass it to pandas explicitly. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Apps on Python SDK v3 write their output gzip-compressed. Without this the analysis raises, the event handler falls back to the void analyzer, and every Python App reports empty statistics instead of an error. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Python SDK v3 writes App output as a gzip-compressed pickle. MoveApps hands the
cargo-agent an extension-less path (
/tmp/output_file), so pandas cannot inferthe compression from the file name — it is determined from the first two bytes
instead.
Uncompressed output stays readable: Apps built against an earlier SDK keep
writing plain pickles, and their stored output can still reach the agent.
Without this change the read raises, the event handler falls back to the void
analyzer as designed, and every Python App would report empty statistics rather
than an error.
Release as
v2.2.0— the agent only gains an ability, nothing breaks.