On Fri, Jul 3, 2009 at 1:07 AM, Stef Mientki<stef.mien...@gmail.com> wrote: > ryles wrote: > > On Jul 2, 1:25 am, Terry Reedy <tjre...@udel.edu> wrote: > > > The next statement works, > but I'm not sure if it will have any dramatical side effects, > other than overruling a possible object with the name A > > > def some_function ( ...) : > A = object ( ...) > sys._getframe(1).f_globals [ Name ] = A > > > global name > name = A > > or is name is a string var > globals()[name] = A > > > It wasn't explicit, but I think Stef meant that the global should be > added to the caller's environment, which was the reason for > sys._getframe(). > > Is this environment only intended for interactive use? I wonder if you > might just set things up > in a PYTHONSTARTUP script instead. > > > the idea is to get a simple environment where you can do interactive 3D > geometry, > without knowing anything about Python. > So to create a triangle e.g., the whole program will look like this: > > Point ( 'A', (1,1,0) ) > Point ( 'B', (5,5,0) ) > Point ( 'C', (1,5,0) ) > Line_Segment ( 'AB' ) > Line_Segment ( 'BC' ) > Line_Segment ( 'AC' ) > > > > And now the points A,B,C and the line segments AB,BC,AC also exists as > variables in the namespace of the above environment. > So now you can add a point "D" in the middle of the line-segment AB, by > giving the formula of that point: > > Point ( 'D', ' ( A + B ) / 2 ' ) > > Or display the properties of point A, with : > > Print A > > which (for the moment) will result in: > > Point Instance: A > Childs : AB(Line-Segment), AC(Line-Segment), > Parents: > > The graphics above is done in VPython, which gives you an easy way to make > all objects dragable, > and if objects are defined by formulas, the will stick together according to > that formula. > > And now it's obvious I can't use the solution of Terry, > because I don't know what names will to become global.
Have you considered just using imports instead? Requiring a single opaque: from graphicslibthingy import * at the start of a file using the environment isn't so bad, IMHO. Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
