README

Greek Sort

Write a comparator for a list of phonetic words for the letters of the greek alphabet.

A comparator is:

a custom comparison function of two arguments (iterable elements) which should return a negative, zero or positive number depending on whether the first argument is considered smaller than, equal to, or larger than the second argument

Source

The greek alphabet is preloaded for you as greek_alphabet:

GREEK_ALPHABET = (
    'alpha', 'beta', 'gamma', 'delta', 'epsilon', 'zeta',
    'eta', 'theta', 'iota', 'kappa', 'lambda', 'mu',
    'nu', 'xi', 'omicron', 'pi', 'rho', 'sigma',
    'tau', 'upsilon', 'phi', 'chi', 'psi', 'omega')

Examples:

greek_comparator('alpha', 'beta')   <  0
greek_comparator('psi', 'psi')      == 0
greek_comparator('upsilon', 'rho')  >  0

Source