/usr/lib/python3.4/test/mailcap.txt is in libpython3.4-testsuite 3.4.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | # Mailcap file for test_mailcap; based on RFC 1524
# Referred to by test_mailcap.py
#
# This is a comment.
#
application/frame; showframe %s; print="cat %s | lp"
application/postscript; ps-to-terminal %s;\
needsterminal
application/postscript; ps-to-terminal %s; \
compose=idraw %s
application/x-dvi; xdvi %s
application/x-movie; movieplayer %s; compose=moviemaker %s; \
description="Movie"; \
x11-bitmap="/usr/lib/Zmail/bitmaps/movie.xbm"
application/*; echo "This is \"%t\" but \
is 50 \% Greek to me" \; cat %s; copiousoutput
audio/basic; showaudio %s; compose=audiocompose %s; edit=audiocompose %s;\
description="An audio fragment"
audio/* ; /usr/local/bin/showaudio %t
image/rgb; display %s
#image/gif; display %s
image/x-xwindowdump; display %s
# The continuation char shouldn't \
# make a difference in a comment.
message/external-body; showexternal %s %{access-type} %{name} %{site} \
%{directory} %{mode} %{server}; needsterminal; composetyped = extcompose %s; \
description="A reference to data stored in an external location"
text/richtext; shownonascii iso-8859-8 -e richtext -p %s; test=test "`echo \
%{charset} | tr '[A-Z]' '[a-z]'`" = iso-8859-8; copiousoutput
video/mpeg; mpeg_play %s
video/*; animate %s
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