复制代码 代码如下:
If order does not matter, you can use
\”\”.join(set(foo))
set() will create a set of unique letters in the string, and \”\”.join() will join the letters back to a string in arbitrary order.
If order does matter, you can use collections.OrderedDict in Python 2.7:
from collections import OrderedDict
foo = \”mppmt\”
print \”\”.join(OrderedDict.fromkeys(foo))
printing
mpt
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