Correct for PEP8

doc/source/tutorials/examples/blenddemo_beesampling.py

 """
 Example on how to use the rendering module
 """
-import tempfile
 import numpy as np
-import os
 import matplotlib.pyplot as plt
 from matplotlib.patches import ConnectionPatch
 from navipy.database import DataBaseLoad

navipy/maths/test_euler.py

@@ -9,8 +9,8 @@ class TestEuler(unittest.TestCase):
         condition = dict()
         for key, _ in constants._AXES2TUPLE.items():
             rotation_0 = euler.matrix(1, 2, 3, key)
-            angles = euler.from_matrix(rotation_0, key)
-            rotation_1 = euler.matrix(*angles, key)
+            ai, aj, ak = euler.from_matrix(rotation_0, key)
+            rotation_1 = euler.matrix(ai, aj, ak, key)
             condition[key] = np.allclose(rotation_0,
                                          rotation_1)
             if condition[key] is False: