Create app.py

app.py

@@ -0,0 +1,100 @@
+from flask import Flask, render_template, request, redirect, url_for, session
+import sqlite3
+import joblib
+import numpy as np
+from werkzeug.security import generate_password_hash, check_password_hash
+
+app = Flask(__name__)
+app.secret_key = "supersecretkey"  # change in production
+
+MODEL_PATH = "rf_house_price_model.joblib"
+model = joblib.load(MODEL_PATH)
+
+# ---------- Database Setup ----------
+def init_db():
+    conn = sqlite3.connect("users.db")
+    c = conn.cursor()
+    c.execute('''CREATE TABLE IF NOT EXISTS users
+                 (id INTEGER PRIMARY KEY AUTOINCREMENT,
+                  username TEXT UNIQUE,
+                  password TEXT)''')
+    conn.commit()
+    conn.close()
+
+init_db()
+
+# ---------- Routes ----------
+@app.route("/")
+def index():
+    if "username" in session:
+        return redirect(url_for("home"))
+    return redirect(url_for("login"))
+
+@app.route("/signup", methods=["GET", "POST"])
+def signup():
+    if request.method == "POST":
+        username = request.form["username"]
+        password = generate_password_hash(request.form["password"])
+        try:
+            conn = sqlite3.connect("users.db")
+            c = conn.cursor()
+            c.execute("INSERT INTO users (username, password) VALUES (?, ?)", (username, password))
+            conn.commit()
+            conn.close()
+            return redirect(url_for("login"))
+        except:
+            return "Username already exists!"
+    return render_template("signup.html")
+
+@app.route("/login", methods=["GET", "POST"])
+def login():
+    if request.method == "POST":
+        username = request.form["username"]
+        password = request.form["password"]
+        conn = sqlite3.connect("users.db")
+        c = conn.cursor()
+        c.execute("SELECT * FROM users WHERE username=?", (username,))
+        user = c.fetchone()
+        conn.close()
+        if user and check_password_hash(user[2], password):
+            session["username"] = username
+            return redirect(url_for("home"))
+        else:
+            return "Invalid credentials"
+    return render_template("login.html")
+
+@app.route("/logout")
+def logout():
+    session.pop("username", None)
+    return redirect(url_for("login"))
+
+@app.route("/home")
+def home():
+    if "username" not in session:
+        return redirect(url_for("login"))
+    return render_template("home.html", username=session["username"])
+
+@app.route("/predict", methods=["GET", "POST"])
+def predict():
+    if "username" not in session:
+        return redirect(url_for("login"))
+    
+    if request.method == "POST":
+        features = [
+            float(request.form["longitude"]),
+            float(request.form["latitude"]),
+            float(request.form["housing_median_age"]),
+            float(request.form["total_rooms"]),
+            float(request.form["total_bedrooms"]),
+            float(request.form["population"]),
+            float(request.form["households"]),
+            float(request.form["median_income"]),
+            float(request.form["rooms_per_household"])
+        ]
+        prediction = model.predict([features])[0]
+        return render_template("predict.html", prediction=round(prediction, 2))
+    
+    return render_template("predict.html", prediction=None)
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=7860)