fix logout route

app.py

@@ -18,13 +18,15 @@
 app.config["SECRET_KEY"] = "your_secret_key_here"
 app.config["SESSION_TYPE"] = "filesystem"
 
+
 class LoginForm(FlaskForm):
     username = StringField(
         "Username", validators=[DataRequired(), Length(min=2, max=20)]
     )
     password = PasswordField("Password", validators=[DataRequired()])
     submit = SubmitField("Login")
 
+
 class DashboardForm(FlaskForm):
     command = StringField(
         "Enter command to reset server:",
@@ -33,21 +35,27 @@ class DashboardForm(FlaskForm):
     )
     submit = SubmitField("Submit")
 
+
 @app.route("/")
 def home():
     return render_template("home.html")
 
+
 @app.route("/login", methods=["GET", "POST"])
 def login():
     form = LoginForm()
     if form.validate_on_submit():
-        if form.username.data == ADMIN_USERNAME and form.password.data == ADMIN_PASSWORD:
+        if (
+            form.username.data == ADMIN_USERNAME
+            and form.password.data == ADMIN_PASSWORD
+        ):
             session["logged_in"] = True
             return redirect(url_for("dashboard"))
         else:
             flash("Login Unsuccessful. Please check username and password", "danger")
     return render_template("login.html", title="Login", form=form)
 
+
 @app.route("/dashboard", methods=["GET", "POST"])
 def dashboard():
     if not session.get("logged_in"):
@@ -79,5 +87,12 @@ def dashboard():
 
     return render_template("dashboard.html", form=form, stats=stats, output=output)
 
+
+@app.route("/logout")
+def logout():
+    session.pop("logged_in", None)
+    return redirect(url_for("home"))
+
+
 if __name__ == "__main__":
     app.run(debug=True)