Joining Lists

>>> nautical_directions = "\n".join(["fore","aft","starboard","port"])
>>> print(nautical_directions)
fore
aft
starboard
port

>>> names = ["Garcia", "O'Kelly", "Davis"]
>>> "-".join(names)
"Garcia-O'Kelly-Davis"

Note that join will trigger an error if we try to join anything other than strings.

>>> python_vareties.append('Blood Python')
>>> print(python_vareties)
['Burmese Python', 'African Rock Python', 'Ball Python', 'Reticulated Python', 'Angolan Python', 'Blood Python']

def median(numbers):
	numbers.sort()
	if len(numbers) % 2:
		middle_index = int(len(numbers)/2)
		return numbers[middle_index]
	else:
		right_of_middle = len(number)//2
		left_of_middle = right_of_middle -1
		return (numbers[right_of_middle] + numbers[left_of_middle])/2