﻿ Python: Calculate the difference between two iterables, without filtering duplicate values - w3resource

# Python: Calculate the difference between two iterables, without filtering duplicate values

## Python List: Exercise - 247 with Solution

Write a Python program to calculate the difference between two iterables, without filtering duplicate values.

• Create a set from y.
• Use a list comprehension on x to only keep values not contained in the previously created set, _y.

Sample Solution:

Python Code:

``````def difference(x, y):
_y = set(y)
return [item for item in x if item not in _y]
print(difference([1, 2, 3], [1, 2, 4]))
```
```

Sample Output:

```[3]
```

Flowchart:

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## Python: Tips of the Day

```print(2_000_000)
```2000000