Never prompt for an Earthdata login, and attempt it only once - #56
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A DPS job log from the first tile that got as far as the solve
(08ee68ea, 2026-09-08) carried this three times:
Enter your Earthdata Login username:
That is my regression from replacing login(strategy='netrc') with a bare
login(): the default is strategy='all', which ends at the INTERACTIVE
strategy. On a worker there is no TTY, so it printed a prompt into the job
log and then failed on the closed stdin -- harmless only because the caller
tolerates failure. A batch job must never wait on a human, and a prompt
buried in a log that scrolls past is worse than a clean warning.
The strategies are now tried explicitly -- 'environment', then 'netrc' -- and
'interactive' is not among them. The outcome is remembered, so a tile that
searches once per granule pays for at most one attempt rather than one per
call, which is why the prompt appeared three times in a single job.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013MdMEXw2s6eeGtaGcaDxpF
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A DPS job log from the first tile that got as far as the solve (08ee68ea, 2026-09-08) carried this three times:
That is my regression from replacing login(strategy='netrc') with a bare login(): the default is strategy='all', which ends at the INTERACTIVE strategy. On a worker there is no TTY, so it printed a prompt into the job log and then failed on the closed stdin -- harmless only because the caller tolerates failure. A batch job must never wait on a human, and a prompt buried in a log that scrolls past is worse than a clean warning.
The strategies are now tried explicitly -- 'environment', then 'netrc' -- and 'interactive' is not among them. The outcome is remembered, so a tile that searches once per granule pays for at most one attempt rather than one per call, which is why the prompt appeared three times in a single job.
Claude-Session: https://claude.ai/code/session_013MdMEXw2s6eeGtaGcaDxpF