How to make that f"…" string formatting uses comma instead of dot as decimal separator?

I tried:

import locale
print(locale.locale_alias)
locale.setlocale(locale.LC_ALL, '')
locale.setlocale(locale.LC_NUMERIC, "french")
print(f"{3.14:.2f}")

but the output is 3.14 whereas I would like 3,14.

How to do this with f"…" string formatting?

Note: I don’t want to use .replace(".", ",")

Note: I’m looking for a Windows solution, and solutions from How to format a float with a comma as decimal separator in an f-string? don’t work (thus it’s not a duplicate on Windows):

locale.setlocale(locale.LC_ALL, 'nl_NL')
# or
locale.setlocale(locale.LC_ALL, 'fr_FR')

locale.Error: unsupported locale setting

>Solution :

I looked up the answers on the duplicate flagged page and found an answer that worked:

Change print(f"{3.14:.2f}") to print(f"{3.14:.3n}") and you will get the result: 3,14

See https://docs.python.org/3/library/string.html#format-specification-mini-language:

'n' : Number. This is the same as ‘d’, except that it uses the current locale setting to insert the appropriate number separator characters.