human
I am working on the file "08-Defining-Functions.ipynb".
The first task is:
When non-keyword arguments are used together with keyword arguments, the keyword arguments must come at the end.
Defining Functions
Functions become even more useful when we begin to define our own, organizing functionality to be used in multiple places.
In Python, functions are defined with the def statement.
For example, we can encapsulate a version of our Fibonacci sequence code from the previous section as follows:
Can you write Python code for it?
assistant
#Here is the Python code you requested.

def fibonacci(N):
    L = []
    a, b = 0, 1
    while len(L) < N:
        a, b = b, a + b
        L.append(a)
    return L