Delete lists with same elements in this case words in a listbut in different order in Python-CodePudding

I have this list for example but there are more elements in the problem

data = [['USD','PEN'], ['GFY' ,'ARG'], ['TFG','RSD'], ['PEN','USD'], ['GFT','RSD']]

How can I eliminate the elements of the list that are repeated but in a different order, in this case the ['PEN','USD'] would be eliminated because the ['USD','PEN'] already exists in Python

CodePudding user response：

The idea is that we can check the existence by the sorted element. You can achieve this like below. You could make this more elegant.

data = [['USD','PEN'], ['GFY' ,'ARG'], ['TFG','RSD'], ['PEN','USD'], ['GFT','RSD']]

tmp = []
exists = set()
for x in data:
  x_sorted = tuple(sorted(x))
  if x_sorted not in exists:
    tmp.append(x)
    exists.add(x_sorted)
tmp
# [['USD', 'PEN'], ['GFY', 'ARG'], ['TFG', 'RSD'], ['GFT', 'RSD']]

CodePudding user response：

for entry in data:
    if "USD" in entry and "PEN" in entry:
        data.remove(entry)