[issue44687] io.BufferedReader:peek() closes underlying file, breaking peek/read expectations

[Jun De]

Jun De <solsticedante at gmail.com> added the comment:

Awesome! To be honest I was very inclined to add test cases for this edge case, but while some existing test cases use native objects like io.BytesIO, the one that our edge case uses is HTTPResponse from `urllib3.response.py`. Should I still go ahead with writing the test cases in this case? I worry about creating new dependencies for the python repository.

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<https://bugs.python.org/issue44687>
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