[issue33663] Web.py wsgiserver3.py raises TypeError when CSS file is not found

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

This code was added in issue16088. Taking into account all other uses of send_header(), and that len() always returns an integer, seems "int" should be replaced with "str".

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nosy: +pitrou, serhiy.storchaka

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<https://bugs.python.org/issue33663>
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