Python: Difference between the two lists

Python List: Exercise - 19 with Solution

Write a Python program to calculate the difference between the two lists.

Sample Solution:

Python Code:

list1 = [1, 3, 5, 7, 9]
list2=[1, 2, 4, 6, 7, 8]
diff_list1_list2 = list(set(list1) - set(list2))
diff_list2_list1 = list(set(list2) - set(list1))
total_diff = diff_list1_list2 + diff_list2_list1
print(total_diff)

Sample Output:

[9, 3, 5, 8, 2, 4, 6]

Explanation:

In the above exercise -

• list1 = [1, 3, 5, 7, 9]: Creates a list list1 with the values [1, 3, 5, 7, 9].
• list2=[1, 2, 4, 6, 7, 8]: Creates a list list2 with the values [1, 2, 4, 6, 7, 8].
• diff_list1_list2 = list(set(list1) - set(list2)): Creates a list diff_list1_list2 containing the elements that are in list1 but not in list2. This is done by converting list1 and list2 to sets and performing set difference (-) operation between them. The resulting set is then converted back to a list diff_list1_list2.
• diff_list2_list1 = list(set(list2) - set(list1)): Creates a list diff_list2_list1 containing the elements that are in list2 but not in list1. This is done by converting list2 and list1 to sets and performing set difference (-) operation between them. The resulting set is then converted back to a list diff_list2_list1.
• total_diff = diff_list1_list2 + diff_list2_list1: Combines the elements in both difference lists diff_list1_list2 and diff_list2_list1 into a single list.
• print(total_diff): Finally print() function prints the resulting list containing the differences between the two lists, which in this case would be [3, 5, 9, 2, 4, 6, 8].

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