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content transfer encoding per RFCs 2045-2047.
This module handles the content transfer encoding method defined in RFC
2045
to encode arbitrary 8-bit data using the three 8-bit bytes in four 7-bit
characters encoding known as Base64.
It is used in the MIME standards for email to attach images, audio, and
text
using some 8-bit character sets to messages.
This module provides an interface to encode and decode both headers and
bodies
with Base64 encoding.
RFC 2045 defines a method for including character set information in an
`encoded-word' in a header. This method is commonly used for 8-bit
real names
in To:, From:, Cc:, etc. fields, as well as Subject: lines.
This module does not do the line wrapping or end-of-line character
conversion
necessary for proper internationalized headers; it only does dumb encoding
and
decoding. To deal with the various line wrapping issues, use the
email.header
module.
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a single header line with Base64 encoding in a given charset.
charset names the character set to use to encode the header. It
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a string with base64.
Each line will be wrapped at, at most, maxlinelen characters (defaults
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Each line of encoded text will end with eol, which defaults to
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in an email.
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