New submission from Sergei Stolyarov <ser...@regolit.com>:
Here is the test script:
--------------
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email import encoders
msg = MIMEMultipart()
msg['Subject'] = 'Bug test'
text_part = MIMEText('actual content doesnt matter')
text_part.set_charset('utf-8')
msg.attach(text_part)
xml_part = MIMEText(b'<xml>aaa</xml>')
xml_part.set_type('text/xml')
xml_part.set_charset('utf-8')
encoders.encode_base64(xml_part)
msg.attach(xml_part)
print(msg.as_string())
--------------------------
It prints the following:
--------------------------
Content-Type: multipart/mixed; boundary="===============2584752675366770986=="
MIME-Version: 1.0
Subject: Bug test
--===============2584752675366770986==
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset="utf-8"
actual content doesnt matter
--===============2584752675366770986==
Content-Transfer-Encoding: 7bit
MIME-Version: 1.0
Content-Type: text/xml; charset="utf-8"
Content-Transfer-Encoding: base64
PHhtbD5hYWE8L3htbD4=
--===============2584752675366770986==--
--------------------------
And that's incorrect: the header "Content-Transfer-Encoding" set twice. As
workaround you can use:
del xml_part['Content-Transfer-Encoding']
----------
components: email
messages: 163266
nosy: barry, cancel, r.david.murray
priority: normal
severity: normal
status: open
title: Duplicated Content-Transfer-Encoding header when applying email.encoders
versions: Python 2.7, Python 3.1, Python 3.2
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue15115>
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