how do i use values of if-block outside if-block? [duplicate]

signin = None;
user   = None;    
    def register():
        form1 = Signup()
        if form1.validate_on_submit():
            signin = auth_py.create_user_with_email_and_password(form1.email_address.data, form1.password.data)
            user = auth_py.send_email_verification(signin['idToken'])  # for email verification
    
            name = form1.name.data
            username = form1.username.data
            email_address = form1.email_address.data
    
            return redirect(url_for('home_page'))
        if form1.errors != {}:`enter code here`