12.2.11 Differences from email v1 (up to Python 2.2.1)

Version 1 of the email package was bundled with Python releases up to Python 2.2.1. Version 2 was developed for the Python 2.3 release, and backported to Python 2.2.2. It was also available as a separate distutils based package. email version 2 is almost entirely backward compatible with version 1, with the following differences:

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