Fix right padding error

chatbot_constructor.py

@@ -91,7 +91,7 @@ def train(message: str = "", regularization: float = 0.0001, dropout: float = 0.
         else:
             for key in dset:
                 tokens = tokenizer.texts_to_sequences([key,])[0]
-                X.append(np.array(list(tokens)+[0,]*inp_len[:inp_len]))
+                X.append(np.array((list(tokens)+[0,]*inp_len)[:inp_len]))
                 y.append(dset[key])
 
         X = np.array(X)