import_module.py

def import_module(file_name):
    """Import the file (including optional relative or absolute path) into
    a module namespace.

    Args:
    file_name - A string with the name of the file to load as a module.

    Returns:
    The module namespace.
    """
    path = file_name.rfind("/")
    file_suffix = file_name.find(".")
    module_name = file_name[path + 1:file_suffix]
    try:
        spec = importlib.util.spec_from_file_location(
            module_name, file_name)
        module = importlib.util.module_from_spec(spec)
        spec.loader.exec_module(module)
        return module
    except OSError as e:
        print("Error loading", file_name, "with error message:", e.strerror)