[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

machine_learning/multilayer_perceptron_classifier_from_scratch.py

@@ -1,6 +1,9 @@
 import numpy as np
 from numpy.random import default_rng
+
 rng = default_rng(42)
+
+
 class Dataloader:
     """
     DataLoader class for handling dataset, including data shuffling,
@@ -136,12 +139,12 @@ class MLP:
     """
 
     def __init__(
-            self,
-            dataloader: Dataloader,
-            epoch: int,
-            learning_rate: float,
-            gamma: float = 1.0,
-            hidden_dim: int = 2,
+        self,
+        dataloader: Dataloader,
+        epoch: int,
+        learning_rate: float,
+        gamma: float = 1.0,
+        hidden_dim: int = 2,
     ) -> None:
         self.learning_rate = learning_rate
         self.gamma = gamma  # learning_rate decay hyperparameter gamma
@@ -192,8 +195,7 @@ def initialize(self) -> tuple[np.ndarray, np.ndarray]:
         """
 
         in_dim, out_dim = self.dataloader.get_inout_dim()
-        w1 = (rng.standard_normal((in_dim + 1, self.hidden_dim)) *
-              np.sqrt(2.0 / in_dim))
+        w1 = rng.standard_normal((in_dim + 1, self.hidden_dim)) * np.sqrt(2.0 / in_dim)
         w2 = rng.standard_normal((self.hidden_dim, out_dim)) * np.sqrt(
             2.0 / self.hidden_dim
         )