Unhandled exception: ModuleNotFoundError: No module named 'gevent'

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### Step 2: Describe the problem:

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#### Observed Results:

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#### Expected Results:

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Start by supplying the missing environment, reproduction steps, observed output, and expected result requested in the issue template. Then locate the startup path producing ModuleNotFoundError for gevent; done should mean the reported failure is reproducible and its handling or dependency requirement is verified.

Written by the indexing model from the issue text.