Python program to remove duplicate characters of a given string.
>>> foo = 'mppmt'
>>> ''.join(sorted(set(foo), key=foo.index))
'mpt'Python program to remove duplicate characters of a given string.
>>> foo = 'mppmt'
>>> ''.join(sorted(set(foo), key=foo.index))
'mpt'Copyright © 2021 Codeinu
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