convert: change socket mode from b'r+' to 'rwb' in cvs.py (issue6789)
'r+' mode used to open sockets for read/write operations, but '+' is not
supported in Python 3. We're using bytes with these sockets everywhere, so the
mode should have 'b'. But the mode argument has to be str, not bytes.
from mercurial.i18n import _
from mercurial import changegroup, error, extensions
def abort(orig, *args, **kwargs):
raise error.Abort(_('this is an exercise'))
def uisetup(ui):
extensions.wrapfunction(changegroup, 'getbundler', abort)