Python: Best Way to remove duplicate character from string

Question

How can I remove duplicate characters from a string using Python? For example, let\'s say I have a string:

foo = \"SSYYNNOOPPSSIISS\"

How c

Answer 1

Using itertools.groupby:

>>> foo = "SSYYNNOOPPSSIISS"
>>> import itertools
>>> ''.join(ch for ch, _ in itertools.groupby(foo))
'SYNOPSIS'