This is a utility module for converting from and to Roman numerals. It supports numbers upto 3,999,999, using the vinculum to denote multiplication by 1000. (i.e.: X is 10 while X̅ is 10000.) The only letter that this does not apply to is I, as M already existed for 1000.

Special credit goes to Paul M. Winkler, for the original basis for a large chunk of the core converter functions as written in the Python Cookbook.

Install the package:

pip3 install romanicize

Once installed, a command line utility is available to your shell:

$ romanicize 2021
MMXXI
$ romanicize MMXIX
2019

With a Python script, convert from an integer to a Roman numeral:

from romanicize import to_numeral

print(to_numeral(2021))  # Outputs: MMXXI

Within a Python script, convert from a Roman numeral to an integer:

from romanicize import to_int

print(to_int('MV̅DLXXVIII'))  # Outputs: 4578