python - How to get rid of duplicate entries in a comma separated string -

i have comma separated string, how remove duplicate entries in string in pythonic way.

for example string "a,a,b" should changed "a,b".

is order of elements important? if not, easiest way create set:

result = ','.join(set(text.split(','))) 

but said, won’t preserve order of original string:

>>> text = 'b,a,b' >>> ','.join(set(text.split(','))) 'a,b'