[issue25313] IDLE: gracefully handle themes (or keysets, or ...) not present

[Mark Roseman]

Mark Roseman added the comment:

On a more direct note, have attached missingtheme.patch, which ensures that all queries for the active theme go through CurrentTheme(), which has been modified to verify that the theme exists; if not, it returns 'IDLE Classic'

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Added file: http://bugs.python.org/file40693/missingtheme.patch

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