How to write code for a definite integral?

Question

Python

Compiled a code for solving a definite integral:

def d_phi(a):
    return a
dphi = quad(d_phi, 0, 0.01, args=(1))

When run, it gives an error:
TypeError: d_phi() takes 1 positional argument but 2 were given
What did I do wrong and how can I fix it?

Answer 1

Because args are optional arguments? You have an integration variable and more args. In total 2. A function from one argument