Implement the bisection method in Python, i.e. define the following Python function:

def bisection_solve(f, a, b, tol=0.001, maxiter=100):
    """
    Find the zero of the function f between a and b using the
    Bisection Method with tolerance tol (default: 0.001) and 
    maximum number of iterations equal to maxiter (default: 100)
    """

Apply the bisection_solve function to the polynomial $x^3+2x-1$ on the interval $[0,1]$ once with the default value of the tolerance and with a tolerance of $10^{-5}$.

By the way, the exact and approximate zero within the interval is