Clean Blender addon modules

clean_modules.py

# Based on https://devtalk.blender.org/t/plugin-hot-reload-by-cleaning-sys-modules/20040
def cleanse_modules():
    """search for your plugin modules in blender python sys.modules and remove them"""

    for module_name in list(sys.modules.keys()):
        if module_name.startswith(__name__):
            del sys.modules[module_name]
            

# example usage
# in your very top module
# def unregister():
#   # your unregister code
#   cleanse_modules()