Update imports

Author: Diegomangasco

Diff for: machine_learning/dimensionality_reduction.py

@@ -9,9 +9,9 @@
 """
 
 import logging
-import pytest
 
 import numpy as np
+import pytest
 from scipy.linalg import eigh
 
 logging.basicConfig(level=logging.INFO, format="%(message)s")