3 from pathlib 
import Path
 
    6 import pinocchio 
as pin
 
    7 from test_case 
import PinocchioTestCase 
as TestCase
 
   15         vec = pin.StdVec_Vector3()
 
   17             vec.append(np.random.rand(3))
 
   19         pickle.dump(vec, Path(
"save_std_vec.p").
open(
"wb"))
 
   21         vec_loaded = pickle.load(Path(
"save_std_vec.p").
open(
"rb"))
 
   22         for k 
in range(len(vec)):
 
   23             self.assertApprox(vec[k], vec_loaded[k])
 
   26 if __name__ == 
"__main__":