ISO 3166-1 defines two-letter, three-letter, and three-digit country codes. python-iso3166 is a self-contained module that converts between these codes and the corresponding country name.

$ pip install iso3166 

>>> from iso3166 import countries >>> >>> countries.get('us') Country(name='United States', alpha2='US', alpha3='USA', numeric='840') >>> countries.get('ala') Country(name='Åland Islands', alpha2='AX', alpha3='ALA', numeric='248') >>> countries.get(8) Country(name='Albania', alpha2='AL', alpha3='ALB', numeric='008') 

>>> from iso3166 import countries >>> for c in countries: print(c) >>> Country(name='Afghanistan', alpha2='AF', alpha3='AFG', numeric='004') Country(name='Åland Islands', alpha2='AX', alpha3='ALA', numeric='248') Country(name='Albania', alpha2='AL', alpha3='ALB', numeric='008') Country(name='Algeria', alpha2='DZ', alpha3='DZA', numeric='012') 

>>> import iso3166 >>> iso3166.countries_by_name >>>{'AFGHANISTAN': Country(name='Afghanistan', alpha2='AF', alpha3='AFG', numeric='004'), 'ALBANIA': Country(name='Albania', alpha2='AL', alpha3='ALB', numeric='008'), 'ALGERIA': Country(name='Algeria', alpha2='DZ', alpha3='DZA', numeric='012'), ... >>> iso3166.countries_by_numeric >>>{'004': Country(name='Afghanistan', alpha2='AF', alpha3='AFG', numeric='004'), '008': Country(name='Albania', alpha2='AL', alpha3='ALB', numeric='008'), '010': Country(name='Antarctica', alpha2='AQ', alpha3='ATA', numeric='010'), ... >>> iso3166.countries_by_alpha2 >>>{'AD': Country(name='Andorra', alpha2='AD', alpha3='AND', numeric='020'), 'AE': Country(name='United Arab Emirates', alpha2='AE', alpha3='ARE', numeric='784'), 'AF': Country(name='Afghanistan', alpha2='AF', alpha3='AFG', numeric='004'), ... >>> iso3166.countries_by_alpha3 >>>{'ABW': Country(name='Aruba', alpha2='AW', alpha3='ABW', numeric='533'), 'AFG': Country(name='Afghanistan', alpha2='AF', alpha3='AFG', numeric='004'), 'AGO': Country(name='Angola', alpha2='AO', alpha3='AGO', numeric='024'), ...