How to get the unique pairs from the given data frame column with file handling?

Question

sample data from dataframe:

Pairs

(8, 8), (8, 8), (8, 8), (8, 8), (8, 8)
(6, 7), (7, 7), (7, 7), (7, 6), (6, 7)
(2, 12), (12, 3), (3, 4), (4, 12), (12,          


        

Answer 1

You can use set() method to remove duplicates from the list of tuples.

 >>> items = [(8, 8), (8, 8), (8, 8), (8, 8), (8, 8),
(6, 7), (7, 7), (7, 7), (7, 6), (6, 7),
(2, 12), (12, 3), (3, 4), (4, 12), (12, 12)]
>>> set_items = set(items)
>>> set_items
{(6, 7), (7, 6), (12, 12), (7, 7), (8, 8), (4, 12), (2, 12), (3, 4), (12, 3)}

Answer 2

You could use the set method:

data = (((8, 8), (8, 8), (8, 8), (8, 8), (8, 8)),
  ((6, 7), (7, 7), (7, 7), (7, 6), (6, 7)),
  ((2, 12), (12, 3), (3, 4), (4, 12), (12, 12)))

uniques = []

for col in data:
  for unique in list(set(col)):
    uniques.append(unique)

for x in uniques:
  print(x)

OR:

data = (((8, 8), (8, 8), (8, 8), (8, 8), (8, 8)),
  ((6, 7), (7, 7), (7, 7), (7, 6), (6, 7)),
  ((2, 12), (12, 3), (3, 4), (4, 12), (12, 12)))

uniques = []

for col in data:
  uniques += [unique for unique in list(set(col))]

for x in uniques:
  print(x)