Default application_home is not a good general choice

[corranwebster]

The name of the application is selected by looking at the enclosing directory of the main script:

traits/traits/etsconfig/etsconfig.py

Lines 361 to 383 in 66b57b7

	def _get_application_dirname(self):
	"""
	Return the name of the directory (not a path) that the "main"
	Python script which started this process resides in, or "" if it could
	not be determined or is not appropriate.
	For example, if the script that started the current process was named
	"run.py" in a directory named "foo", and was launched with "python
	run.py", the name "foo" would be returned (this assumes the directory
	name is the name of the app, which seems to be as good of an assumption
	as any).
	"""
	dirname = ""
	main_mod = sys.modules.get("__main__", None)
	if main_mod is not None:
	if hasattr(main_mod, "__file__"):
	main_mod_file = path.abspath(main_mod.__file__)
	dirname = path.basename(path.dirname(main_mod_file))
	return dirname

This is often something generic, like app, or when being run in tests is likely to be the name of the test runner (eg. unittest).

The only way to override is to completely override application_home.

Having a property that can be set for the directory name would be very useful.