How to use arrays in Python To create an array in Python, we can use a type of variable called a “dictionary.” This is an associative array, meaning that it is made of value/key pairs.

When you call the Cython function in your Python code, send the entire NumPy array object as an argument for that function call. Perform all the iteration over the object in Cython .

When to use a Python dictionary Using Python dictionaries makes the most sense under the following conditions: You want to store objects and data using names, not just positions or index numbers.