Update app.py

app.py

@@ -6,7 +6,7 @@ import numpy as np
 import tensorflow as tf
 import matplotlib.pyplot as plt
 import seaborn as sns
-from sklearn.preprocessing import LabelEncoder
+from sklearn.preprocessing import LabelEncoders
 from sklearn.model_selection import train_test_split
 from sklearn.preprocessing import MinMaxScaler
 from tensorflow.keras.models import Sequential