unique in list python code example

Example 1: duplicate in list python

a = [1,2,3,2,1,5,6,5,5,5]

import collections
print([item for item, count in collections.Counter(a).items() if count > 1])

## [1, 2, 5]

Example 2: python list with only unique values

my_list = list(set(my_list))

Example 3: unique list values python ordered

def get_unique(seq):
    seen = set()
    seen_add = seen.add
    return [x for x in seq if not (x in seen or seen_add(x))]

Example 4: minimum in list python

c=[4, 10, 2, 57]

print(min(c))
# 2