On Sat, Aug 28, 2010 at 2:37 PM, David ROBERT <da...@ombrepixel.com> wrote: > Hi all, > > I want to use an InteractiveConsole at some stage in a program to > interact with the local namespace: access, but also modify objects. > When the interactive console ends (ctrl-d) I want the program to > continue processing with the variables that may have been modified > interactively. > > The code below works (block invoking the console is not in a > function). During the interactive session, I can read value of a, I > can change value of a and the new value is "updated" in the block > namespace. > > import code > if __name__ == '__main__': > a=1 > c = code.InteractiveConsole(locals()) > c.interact() # Here I interactively change the value of a (a=2) > print "Value of a: ", a > > print returns --> Value of a: 2 > > However, on the other code below (the console is invoked from within a > function block), during the interactive session, I can read value of > a, I can change value of a. But the local namespace of the function is > not updated: > > import code > def test(): > a=1 > c = code.InteractiveConsole(locals()) > c.interact() # Here I interactively change the value of a (a=2) > print "Value of a: ", a > > if __name__ == '__main__': > test() > > print returns --> Value of a: 1 > > I need to run the InteractiveConsole from a function block. I tried > different things with the local and parent frames (sys._getframe()) > but nothing successful. If I put a in the global namespace it works, > but I would like to [...] > understand what the > problem is.
Read http://docs.python.org/library/functions.html#locals (emphasis added): "locals() [...] Note: The contents of this dictionary should not be modified; ***changes may not affect the values of local and free variables used by the interpreter***." At the top-level / module scope, it just so happens that `locals() is globals() == True`; and unlike locals(), globals() does not have the aforequoted limitation. I don't know if there's a non-ugly workaround. Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
