import bpy





class MyProperties(bpy.types.PropertyGroup):

    my_string : bpy.props.StringProperty(name= "Password", subtype= 'PASSWORD')



class ADDONNAME_PT_main_panel(bpy.types.Panel):
    bl_label = "Main Panel"
    bl_idname = "ADDONNAME_PT_main_panel"
    bl_space_type = 'VIEW_3D'
    bl_region_type = 'UI'
    bl_category = "New Tab"

    def draw(self, context):
        layout = self.layout
        scene = context.scene
        mytool = scene.my_tool

        row = layout.row()
        split = row.split(factor= 0.5)

        row.prop(mytool, "my_string")



        layout.operator("addonname.myop_operator")






class ADDONNAME_OT_my_op(bpy.types.Operator):
    bl_label = "Confirm"
    bl_idname = "addonname.myop_operator"



    def execute(self, context):
        scene = context.scene
        mytool = scene.my_tool

        if mytool.my_string == "awesomepassword":
            bpy.ops.mesh.primitive_cube_add()




        return {'FINISHED'}










classes = [MyProperties, ADDONNAME_PT_main_panel, ADDONNAME_OT_my_op]



def register():
    for cls in classes:
        bpy.utils.register_class(cls)

        bpy.types.Scene.my_tool = bpy.props.PointerProperty(type= MyProperties)

def unregister():
    for cls in classes:
        bpy.utils.unregister_class(cls)
        del bpy.types.Scene.my_tool



if __name__ == "__main__":
    register()