Error while displaying available solvers

[sandeep026]

Got the error while I ran the example code

import numpy as np
from qpsolvers import solve_qp

M = np.array([[1.0, 2.0, 0.0], [-8.0, 3.0, 2.0], [0.0, 1.0, 1.0]])
P = M.T @ M  # this is a positive definite matrix
q = np.array([3.0, 2.0, 3.0]) @ M
G = np.array([[1.0, 2.0, 1.0], [2.0, 0.0, 1.0], [-1.0, 2.0, -1.0]])
h = np.array([3.0, 2.0, -2.0])
A = np.array([1.0, 1.0, 1.0])
b = np.array([1.0])

x = solve_qp(P, q, G, h, A, b, solver="osqp")
print(f"QP solution: x = {x}")
print(solve_qp.available_solvers)

For best performance, build A as a scipy.sparse.csc_matrix rather than as a numpy.ndarray
  warnings.warn(
QP solution: x = [ 0.3076548  -0.69232615  1.38448776]
Traceback (most recent call last):
  File "c:\Users\Sandeep\Downloads\qpsolver python\qpsol.py", line 14, in <module>
    print(solve_qp.available_solvers)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'function' object has no attribute 'available_solvers'

[fabinsch]

Hi @sandeep026,

it should actually be

import qpsolvers
print(qpsolvers.available_solvers)

as described here in the docs. You are accessing the attribute available_solvers on the function solve_qp which does not make sense, you have to do so on the module qpsolvers itself.

[sandeep026]

Thanks.