best proceed enterprising classes controlling python globals()

i'm operative web concentration relapse non-static set modules depending user input. any way python category constructor accepts unparalleled parameter an '.html' ability contains output.

pulling category boldly tellurian namespace works:

result = globals()[classname](param).html

and it's definitely some-more laconic than:

if classname == 'foo':
    outcome = foo(param).html
elif classname == 'bar':
    ...

what deliberate best proceed this, stylistically? there risks reasons tellurian namespace?