How To Set A Custom Thousands Separator?

I know that theoretically digits in large integers can be grouped by thousands for better readability: Python 3.5.2 (default, Nov 17 2016, 17:05:23) [GCC 5.4.0 20160609] on linux

Solution 1:

The pl_PL locale thousands separator seems to be empty. I don't know if this accurately represents common usage in Poland, but Python is correctly formatting your number according to the rules of the pl_PL locale. This may be a bug in the locale files.

As far as I am aware, there is no option to manually specify the thousands separator and decimal mark characters.