[issue12662] Add support for duplicate options in configparser

[Łukasz Langa]

Łukasz Langa <lukasz at langa.pl> added the comment:

This specific config format you're discussing strikes me as error prone and barely useful. With the use case you've given I cannot justify introducing support for it in the standard library. Remember that each switch, variant, however obscure and rarely used, increases source code complexity and introduces a maintenance burden.

As you've seen with the freshly introduced `strict` option, we're generally heading the other direction: to let application users know early they potentially made a misconfiguration that could confuse them later on.

So, thanks for your feedback but unfortunately I will have to say no to that proposal.

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resolution:  -> rejected
status: open -> closed

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<http://bugs.python.org/issue12662>
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