启动python web.py无反应，小白求助

**Summary[问题简述（一句话）]**
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**Env & To Reproduce[复现与环境]**
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Start with web.py and reproduce the reported launch behavior. The issue does not provide the environment, code version, model, or a concrete expected result, so first gather those details and determine what “no response” means before defining a fix and verification step.

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