[docs] https://docs.python.org/3/library/html.entities.html give not hint about how to access the module

[Larry Evans]

The obvious 1st guess is:

   import html

but that results in:

make
python entities.py
Traceback (most recent call last):
   File "entities.py", line 1, in <module>
     import html
ImportError: No module named html

I'm on linux and obviouly have python installed; so, why can't python 
find the *standard* library?

I've been trying for hours to get this to work.
It shouldn't be this hard.

-regards,
Larry