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Python: Remove duplicates from a list

Python List: Exercise-7 with Solution

Write a Python program to remove duplicates from a list.

Example - 1 :

Python: Remove duplicates from a list

Example - 2 :

Python: Remove duplicates from a list

Example - 3 :

Python: Remove duplicates from a list

Sample Solution:-

Python Code:

a = [10,20,30,20,10,50,60,40,80,50,40]

dup_items = set()
uniq_items = []
for x in a:
    if x not in dup_items:
        uniq_items.append(x)
        dup_items.add(x)

print(dup_items)

Sample Output: 

{40, 10, 80, 50, 20, 60, 30}

Flowchart:

Flowchart: Remove duplicates from a list

Visualize Python code execution:

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Python Code Editor:

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Previous: Write a Python program to get a list, sorted in increasing order by the last element in each tuple from a given list of non-empty tuples.
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Python: Tips of the Day

Returns True if the provided function returns True for every element in the list, False otherwise:

Example:

def tips_every(lst, fn=lambda x: x):
  return all(map(fn, lst))

print(tips_every([2, 4, 3], lambda x: x > 1))
print(tips_every([1, 2, 3]))

Output:

True
True