Fastest way to uniqify a list in Python

Question

Fastest way to uniqify a list in Python without preserving order? I saw many complicated solutions on the Internet - could they be faster than simply:

list(s         


        

Answer 1

Tim Peters wrote a classic general cookbook recipe for this problem back in 2001 (before sets were introduced). Comments by Alex Martelli, Raymond Hettinger et alia are informative and include updating to use sets etc.