On Mon, Dec 21, 2009 at 1:51 PM, W. eWatson <wolftra...@invalid.com> wrote: > Lie Ryan wrote: >> >> On 12/22/2009 6:39 AM, W. eWatson wrote: >>> >>> Wow, did I get a bad result. I hit Ctrl-P, I think instead of Alt-P, and >>> a little window came up showing it was about to print hundreds of pages. >>> I can canceled it, but too late. I turned off my printer quickly and >>> eventually stopped the onslaught. >>> >>> I couldn't get Alt-P or N to work. >>> >>> Another question. In interactive mode, how does one know what modules >>> are active? Is there a way to list them with a simple command? >> >> What do you mean by "active"? All loaded modules, whether it is in your >> namespace or not? Then sys.modules. >> Else if you want all names in your namespace, dir() would do, though it'll >> show other things as well. > > Let's forget active. Isn't it true that math is automatically available to > every module? From help(math):
No, its not true. A built-in module does not mean its available everywhere. It means its built into Python itself-- e.g., its directly linked into the python dll and not a separate file (like most of the the standard library). Lots of modules are built-in, but they don't pollute the __builtins__ / universal namespace. You import them to access them. If you want you can "from math import *" if you want the math module to fill out your module namespace (I don't recommend *'s personally, its better to import symbols explicitly by name) --S -- http://mail.python.org/mailman/listinfo/python-list
