[issue18876] Problems with files opened in append mode with io module

[R. David Murray]

R. David Murray added the comment:

Hi, Erik.  I changed the versions because we use versions in this tracker to indicate which versions we intend to *fix* the problem in.  I left 2.7 and 3.3 marked for the moment, but I have a feeling that this will need to be a feature-release-only change.  Not only does it require a new attribute, it also changes the semantics (albeit in a sensible way), and as such could break working code if applied to a maintenance release.

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nosy: +r.david.murray

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