[issue12274] "Print window" menu on IDLE aborts whole application

[Łukasz Langa]

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

In 3.2 configparser started validating syntax in interpolation-aware parsers by default. I fixed the configuration.

It's unfortunate this configuration error hasn't been caught before in testing. We need a unit test for broken configuration and a change in IDLE so that it doesn't silently crash when configuration is invalid.

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nosy: +kbk
stage:  -> test needed
versions: +Python 3.3

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