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:mod:`quopri` --- Encode and decode MIME quoted-printable data
==============================================================
.. module:: quopri
:synopsis: Encode and decode files using the MIME quoted-printable encoding.
**Source code:** :source:`Lib/quopri.py`
.. index::
pair: quoted-printable; encoding
single: MIME; quoted-printable encoding
--------------
This module performs quoted-printable transport encoding and decoding, as
defined in :rfc:`1521`: "MIME (Multipurpose Internet Mail Extensions) Part One:
Mechanisms for Specifying and Describing the Format of Internet Message Bodies".
The quoted-printable encoding is designed for data where there are relatively
few nonprintable characters; the base64 encoding scheme available via the
:mod:`base64` module is more compact if there are many such characters, as when
sending a graphics file.
.. function:: decode(input, output, header=False)
Decode the contents of the *input* file and write the resulting decoded binary
data to the *output* file. *input* and *output* must be :term:`binary file objects
<file object>`. If the optional argument *header* is present and true, underscore
will be decoded as space. This is used to decode "Q"-encoded headers as
described in :rfc:`1522`: "MIME (Multipurpose Internet Mail Extensions)
Part Two: Message Header Extensions for Non-ASCII Text".
.. function:: encode(input, output, quotetabs, header=False)
Encode the contents of the *input* file and write the resulting quoted-printable
data to the *output* file. *input* and *output* must be
:term:`binary file objects <file object>`. *quotetabs*, a
non-optional flag which controls whether to encode embedded spaces
and tabs; when true it encodes such embedded whitespace, and when
false it leaves them unencoded.
Note that spaces and tabs appearing at the end of lines are always encoded,
as per :rfc:`1521`. *header* is a flag which controls if spaces are encoded
as underscores as per :rfc:`1522`.
.. function:: decodestring(s, header=False)
Like :func:`decode`, except that it accepts a source :class:`bytes` and
returns the corresponding decoded :class:`bytes`.
.. function:: encodestring(s, quotetabs=False, header=False)
Like :func:`encode`, except that it accepts a source :class:`bytes` and
returns the corresponding encoded :class:`bytes`. By default, it sends a
``False`` value to *quotetabs* parameter of the :func:`encode` function.
.. seealso::
Module :mod:`base64`
Encode and decode MIME base64 data
|
