To emulate from X import * you must import the module and then merge the appropriate names into the global namespace.
# get a handle on the module
mdl = importlib.import_module('X')
# is there an __all__? if so respect it
if "__all__" in mdl.__dict__:
names = mdl.__dict__["__all__"]
else:
# otherwise we import all names that don't begin with _
names = [x for x in mdl.__dict__ if not x.startswith("_")]
# now drag them in
globals().update({k: getattr(mdl, k) for k in names})
