miles de separador Python
>>> num = 10000000
>>> print(f"{num:,}")
10,000,000
Cheerful Cormorant
>>> num = 10000000
>>> print(f"{num:,}")
10,000,000
import locale
locale.setlocale(locale.LC_ALL, '') # Use '' for auto, or force e.g. to 'en_US.UTF-8'
'{:n}'.format(value) # For Python ≥2.7
f'{value:n}' # For Python ≥3.6