Referencing vars, methods and classes by name

[Sagari]

> For your other examples there are gross hacks using the dictionaries
> that represent the local and global symbol tables, so we translate
> your examples fairly directly, but stylistically we'd usually stay
> away from that kind of thing.

Thanks to everyone for all the comments. I am migrating from PHP to
Python and I am looking for the means to port a controller code that
would, roughly speaking, call a certain method of a certain class
(both class and method names taken from user input). Putting aside
input verification (by the moment I perform the call input must have
been verified), what would be the recommended way of doing the trick?

Thanks!

All the best,

Konstantin