[issue4953] cgi module cannot handle POST with multipart/form-data in 3.0

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

We may also accept TextIOWrapper (eg. sys.stdin) *and*
BufferedReader/FileIO (eg. sys.stdin.buffer). It is possible to test the
type of the stream. With a TextIOWrapper, the raw buffer can be read
using stream.buffer.

But for StringIO/BytesIO: only BytesIO should be accepted.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue4953>
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