﻿ Python: Remove duplicates from a list - w3resource

# Python: Remove duplicates from a list

## Python List: Exercise-7 with Solution

Write a Python program to remove duplicates from a list.

Example - 1 : Example - 2 : Example - 3 : 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)

print(dup_items)
```
```

Sample Output:

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

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Python Code Editor:

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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
```