* running programs with non-ascii letters in identifiers using freezed thonny
	(used to give ImportError for unicodedata)

* undo / redo
**	with indent, newline, toggle_comment etc. 

* importing from modules dependent on pyd files (eg, _socket)

* debugging complex language constructs

* debug and run empty file

* debug and run file with syntax errors

* close Thonny when program is running

* Heap view works

* All required files end up in sdist (including those from package plugins like system_shell)