Accepting multiple answers as an 'if' variable

Question

How would I accept multiple options/answers for an input. For example:

if player_ship == 'Transport' or 'TRANSPORT' or 'transport':
        print('You successfully purchased a Transport Ship!\n\n')

Answer 1

The below will ensure that case sensitivity is not a problem.

if player_ship.lower() == 'transport'

If you genuinely need to check against specific values, this will work:

if player_ship in {'Transport', 'TRANSPORT', 'transport'}