def index2pos(leader, index):
"""
given an index return the position of the winner
"""
start = positions.index(leader)
ind = (index + start) % 4
return positions[ind]
def getCard(self, position):
ind = positions.index(position)
try:
return self[ind]
except IndexError:
return None
def pos2index(leader, pos):
"""
given an index return the position of the winner
"""
start = positions.index(leader)
return (positions.index(pos) - start) % 4
