Disable Yarn telemetry by default in jlpm#118
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krassowski
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Jun 20, 2026
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Makes sense to me, thank you!
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Fixes #114
Description
Yarn Berry ships with
enableTelemetry: true, so jlpm has been quietly sending anonymous usage data to Yarn's servers. JupyterLab users install via pip/conda and never opt into Yarn directly, so they likely have no idea this is happening and there's a known bug where the telemetry ping can hang the CLI for several minutes on locked-down networks. (yarnpkg/berry#6271)This sets
YARN_ENABLE_TELEMETRY=0as a default in the jlpm launcher, before we execnode + yarn.js.Uses
os.environ.setdefault, so it's a soft default and anyone who wants telemetry back can exportYARN_ENABLE_TELEMETRY=1.