How to set LANG variable in Windows?

Question

I'm making an application that supports multi language. And I am using gettext and locale to solve this issue.

How to set LANG variable in Windows? In Linux and Unix-like systems it's just as simple as

$ LANG=en_US python appname.py

And it will automatically set the locale to that particular language. But in Windows, the

C:\>SET LANG=en_US python appname.py

or

C:\>SET LANG=en_US

C:\>python appname.py

doesn't work.

Answer 1

Windows locale support doesn't rely on LANG variable (or, indeed, any other environmental variable). It is whatever the user set it to in Control Panel.