import_utils.py 文件源码

def delete_module(modname):
    """
    Delete module and sub-modules from `sys.module`
    """
    try:
        _ = sys.modules[modname]
    except KeyError:
        raise ValueError("Module not found in sys.modules: '{}'".format(modname))

    for module in list(sys.modules.keys()):
        if module and module.startswith(modname):
            del sys.modules[module]