Update app.py

app.py

@@ -1,14 +1,15 @@
+import subprocess
+import sys
+
+# Cài đặt thư viện nếu chưa có
+subprocess.check_call([sys.executable, "-m", "pip", "install", "flask", "joblib"])
 from flask import Flask, request, jsonify, render_template
 import pandas as pd
 import numpy as np
 import joblib
 from sklearn.base import BaseEstimator, TransformerMixin
 from sklearn.preprocessing import StandardScaler, LabelEncoder
-import subprocess
-import sys
 
-# Cài đặt thư viện nếu chưa có
-subprocess.check_call([sys.executable, "-m", "pip", "install", "flask", "joblib"])
 # Custom LabelEncoder Transformer
 class LabelEncoderTransformer(BaseEstimator, TransformerMixin):
     def __init__(self):