Update app.py

app.py

@@ -15,6 +15,7 @@ import matplotlib.pyplot as plt
 from sklearn import datasets
 from sklearn.linear_model import SGDClassifier
 from sklearn.inspection import DecisionBoundaryDisplay
+import matplotlib.cm as cm
 
 
 def plot(alpha):
@@ -60,7 +61,7 @@ def plot(alpha):
             X[idx, 1],
             c=color,
             label=iris.target_names[i],
-            cmap=plt.cm.Paired,
+            cmap=cm.Paired,
             edgecolor="black",
             s=20,
         )