@app.route("/login", methods=["POST","GET"])
def login():
    if current_user.is_authenticated:
        return (redirect(url_for("inicio")))
    else:
        form = LoginForm()
        if form.validate_on_submit():
            print(form.username.data)
            print(form.password.data)
            user = User.query.filter_by(username=form.username.data).first()
            if user and user.password == form.password.data:
                #It's ok, user login
                login_user(user)
                return redirect(url_for("inicio"))
            else:
                #user no can login/ pass or user incorrects
                flash("Dados incorretos.")

    return render_template("app/login.html", form=form)