Removing dublicates from a string

[buran]

actually, without printing within function it's better - this way it can be used in different ways. And supplying string as argument is great

def remove_duplicates(item):
    ans = "".join(set(item))
    ans_length = len(item) - len(ans)
    return (ans, ans_length)
   
print(remove_duplicates('abccbafg'))

# but also you can do
dedup, length = remove_duplicates('abbafg')
print('There just {} unique element'.format(length))