Given a string - execute a function by the same name

[Max M]

python at bdurham.com skrev:
> I'm parsing a simple file and given a line's keyword, would like to call
> the equivalently named function.
> 
> There are 3 ways I can think to do this (other than a long if/elif
> construct):
> 
> 1. eval() 
> 
> 2. Convert my functions to methods and use getattr( myClass, "method" )
> 
> 3. Place all my functions in dictionary and lookup the function to be
> called
> 
> Any suggestions on the "best" way to do this?

No reason to use eval.

use either getattr(obj, "method")() or functions['method']

They are basically the same thing.

The dict of functions is a bit safer. You don't risk calling a built in 
method on your object . Which you risk doing with something like: 
getattr(obj, 'join')



-- 

hilsen/regards Max M, Denmark

http://www.mxm.dk/
IT's Mad Science