[Tutor] when is a generator "smart?"

[Mark Lawrence]

On 03/06/2013 08:41, Jim Mooney wrote:
> On 2 June 2013 23:56, eryksun <eryksun at gmail.com> wrote:
>> On Mon, Jun 3, 2013 at 12:44 AM, Jim Mooney <cybervigilante at gmail.com> wrote:
>>> On 2 June 2013 20:33, eryksun <eryksun at gmail.com> wrote:
>
>
>>
>> I looked into PC/getpathp.c. The value of PythonPath shown above is
>> only a fallback for when Python is embedded. Otherwise the interpreter
>> can determine sys.prefix from the exe path, and substitute it for the
>> dots in the following hard-coded path:
>>
>>      .\DLLs;.\lib;.\lib\plat-win;.\lib\lib-tk
>
> Using Python 2.7 on Windows 7
>
> Ah, useful. A lot more than is on windows path and PYTHONPATH
> obviously gets snuck in there. Sure enough, I queried sys.path and
> there's a Lot more in there. But even that wasn't everything since I
> saw RLPy and vtk had also set up their own system variables when I
> checked the environment. But those are special variables. From now on
> if I'm not sure something is on the path I can just query sys.path and
> see if it's there. Good to know.
>
> If I dump a package (not sure how to do that beyond just deleting it,
> but I've tried some bad ones, so I'd like to) how do I remove it from
> sys.path, or do I need to? I know the windows path and the registry
> have a bad habit of accumulating stuff that is no longer there, and
> just keeping it. Programs add to the windows path, but when you
> uninstall them, don't delete from the path, and it grows and grows.
>

On Windows Vista Control Panel->System->Advanced System Settings->System 
Properties->Advanced->Environment Variables.  The path is displayed as a 
user setting and a system setting, edit either at your own risk. 
Programs are available to clear unused settings from the registry.  I 
use them quite happily but if you're unsure of what you're doing I'd 
just leave things alone, you'll probably sleep better for it :)

-- 
"Steve is going for the pink ball - and for those of you who are 
watching in black and white, the pink is next to the green." Snooker 
commentator 'Whispering' Ted Lowe.

Mark Lawrence