Create a histogram from a given list of integersΒΆ

Create a histogram from a given list of integers.
def histogram(items):
    for n in items:
        output = ''
        times = n
        while( times > 0 ):
            output += '*'
            times = times - 1
        print(output)

histogram([2, 3, 6, 5])

Output:

**
***
******
*****