On Thu, Nov 27, 2014 at 4:56 AM, Steven D'Aprano <st...@pearwood.info> wrote: > On Wed, Nov 26, 2014 at 10:18:55PM -0600, boB Stepp wrote: > >> So any variables lower in the program are accessible to those above it? > > No, that can't be the explanation. Think of this: > > b = a + 1 > a = 2 > > That will fail because when the "b = a + 1" line is executed, a doesn't > exist yet so there is no way to get a value for it.
This was my original understanding! I see now that I totally misunderstood what you said in your earlier post: "No, they also have access to globals and built-ins. You define the list l at the top level of your module. That makes it a global, so the printLavel() function can see it." I did not understand what you meant by "top level of your module". As I mentioned just moments ago in response to Alan's post, I looked at Lutz's discussion of scope and I believe I now understand what you originally meant. OTOH, I see that there is much more to scope/name spaces than I originally thought, so I don't claim to fully grasp Lutz's discussion yet. -- boB _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
