Given the Python code below, what will be the output when comparing the lists list1, list2, and list3?list1 = [4]list2 = list1list3 = [4]print(list1 is list2, list1 == list3)
Question
Given the Python code below, what will be the output when comparing the lists list1, list2, and list3?list1 = [4]list2 = list1list3 = [4]print(list1 is list2, list1 == list3)
Solution
The output of the Python code will be "True True".
Here's the step by step explanation:
- list1 is defined with a single element, 4.
- list2 is defined as a reference to list1. This means that list1 and list2 are not just equal, they are the exact same object.
- list3 is defined with a single element, 4. This makes it equal to list1, but it's a different object.
- The "is" operator in Python checks if two variables point to the same object. Since list1 and list2 are the same object, "list1 is list2" returns True.
- The "==" operator in Python checks if the values of two variables are equal. Since the values of list1 and list3 are equal, "list1 == list3" returns True.
- Therefore, the print statement outputs "True True".
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