Will it be possible to support an environment variable (e.g. LOCATION) similar to BROWSER to indicate the location when the positional argument is missing?

Something in the lines of:

LOCATION="New York" pyw

Looking for it for better nnn integration. When I do:

export NNN_HELP= pyw New York

and exec NNN_HELP as a command, I get an error because of the space in New York.