What is required to create a new variable in Python?

To create a new variable in Python, an assignment operator is essential. In Python, variables are created when a value is assigned to them using the assignment operator, which is the equals sign (=). This operation not only introduces a new variable but also binds it to a specific value or object. For instance, when you write x = 5, the variable x is created and assigned the integer value of 5.

While other options might seem relevant in various programming contexts, they are not necessary for creating a variable in Python. A declaration keyword is not used in Python as it is in some other languages; Python employs a dynamic typing system where the type of a variable is determined at runtime. Similarly, while data types exist, they are inferred from the value assigned to the variable, eliminating the need for an explicit declaration. Lastly, importing a library is related to accessing external modules or functionalities rather than the declaration or creation of standard variables within a program.