[issue21329] configparser can't parse MySQL style config

[R. David Murray]

R. David Murray added the comment:

The data structure you are asking for bears a resemblance to the data structure used by the email package to record message headers.  Email uses a list with a dict-like API cobbled together on top.  The difference with your suggestion is that email also needs to record the order of the headers, so just having a list-of-values for each key isn't adequate.  Any bets on whether or not we eventually run across a use of .ini format where the exact order of the duplicated keys within the whole list of keys matters? :)

With two use cases that could be served by the same data structure in the stdlib, I wonder if it is worth actually building the abstract data type.  Probably not, but I thought I'd raise the possibility anyway :)

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nosy: +r.david.murray
type:  -> enhancement
versions: +Python 3.5 -Python 3.4

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<http://bugs.python.org/issue21329>
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