MIMEVersionHeader

email.headerregistry

class (source)

There is really only one valid value for the MIME-Version header, and that is 1.0. For future proofing, this header class supports other valid version numbers. If a version number has a valid value per RFC 2045, then the header object will have non-None values for the following attributes:

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Members of MIMEVersionHeader

m

major: The major version number as an integer
minor: The minor version number as an integer

v

version: The version number as a string, with any whitespace and/or comments removed.