Hello, Yes, using a dictionary is the best way to do this, because it offers a direct translation from a string to the function, and is very extensible.
On Sun, Oct 2, 2011 at 10:50 AM, <sam.hack...@sent.com> wrote: > Hi, > > In my GUI toolkit, I have config files that the program can parse and turn > into a complete menu screen. Now, if I have a button in my menu, and I want > that button to run a function when it is clicked, then I need some way of > naming a function from the config file. > > At the moment I am just parsing the function name and running it through > eval() so it is translated into a real function. For example, a button may > have it's function set to "exit", which evaluates into Python's exit() > function when parsed. > > This has always felt a bit awkward to me, and now it seems that this > method doesn't work when a project is compiled with PyInstaller. So, I was > wondering if there was a well known solution to this problem? > > The first thing I've thought of is accessing it through a dictionary. So, > if I instance a Menu class, and then give it a dictionary that uses a string > as a key, and the approriate function as a value. Then I can just index this > dictionary with the string parsed from the config file, in order to return a > function. > > If anybody can provide any feedback on this, or any better methods for > achieving this, it would be greatly appreciated. > > Thanks, > Sam Bull >
