The utils.load_module() function is used to load a python file (aka module) and
return the module's namespace. SearXNG uses this function to load *engines and
answerers* from arbitrary locations with arbitrary modifications. These are not
real python modules and it is not intended to mix this *engines and answerers*
with the python modules registered in sys.modules.
Closes: https://github.com/searxng/searxng/issues/312
Suggested-by: @dalf in https://github.com/searxng/searxng/issues/312
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>