[issue32917] ConfigParser writes a superfluous final blank line

[TitanSnow]

TitanSnow <tttnns1024 at gmail.com> added the comment:

For the case of sequential writes to the same file,
I think it’s a invalid use case.
The file can be created or modified by
user or other applications, breaking the assume of
ConfigParser. It’s better to have a method to merge
two ConfigParser objects then writes it into the file
at one time.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32917>
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