Question

How to remove duplicate items from list in Python

Answer 1

lst = [34, 78, 34, 90, 'python', 'java', 7.35, 34, 'python']
  
index = 1
while index < len(lst):
    if lst[index] in lst[ : index]:
        lst.pop(index)
    else:
        index += 1

print(lst) 



'''
run:

[34, 78, 90, 'python', 'java', 7.35]

'''

 

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Answer 2

lst = [34, 78, 34, 90, 'python', 'java', 7.35, 34, 'python']
  
lst = list(set(lst)) 

print(lst) 



'''
run:

[34, 7.35, 'java', 78, 'python', 90]

'''

 

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Answer 3

lst = [34, 78, 34, 90, 'python', 'java', 7.35, 34, 'python']
  
lst = [i for v, i in enumerate(lst) if i not in lst[:v]] 

print(lst) 



'''
run:

[34, 78, 90, 'python', 'java', 7.35]

'''

 

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Answer 4

from collections import OrderedDict 

lst = [34, 78, 34, 90, 'python', 'java', 7.35, 34, 'python']
  
lst = list(OrderedDict.fromkeys(lst)) 

print(lst) 



'''
run:

[34, 78, 90, 'python', 'java', 7.35]

'''

 

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