IDLE doesn't not execute commands from shell with default keybinding
for <Return>.
Patch by Roger Serwy.

We concluded that adding registered mimetypes present in most systems' mime
databases can be considered a bug fix.

converting the old buffer for PyArgs_ParseTuple with *s

fix #10340: properly handle EINVAL on OSX and also avoid to call handle_connect() in case of a disconnetected socket which is not meant to connect.

Patch by Guilherme Polo.

allocating path buffers on the heap instead of the stack.

(Patch by Dionysios Kalofonos)