[Tutor] when is a generator "smart?"

[eryksun]

On Sun, Jun 2, 2013 at 10:50 PM, Jim Mooney <cybervigilante at gmail.com> wrote:
> In regard to that, I just tried importing Tkinter, according to a
> guide I'm using. Except the guide is using tkinter and not Tkinter,
> but Py27 has Tkinter. Lord knows why they bothered to change one lousy
> letter - it would be less confusing to have given it an entirely new
> name like notyourmothersKinter ;') Also, lib-tk didn't have __init__
> for some reason so when I changed to Big T for Py27 it still didn't
> import. I put __init__ in, and still no luck, so I put lib-tk into
> PYTHONPATH and it worked, but then I got ambitious with PYTHONPATH and
> caused a bigger problem (below).

The base sys.path configured in the registry already has lib-tk:

    C:\>reg query hklm\software\python\pythoncore\2.7\pythonpath

    HKEY_LOCAL_MACHINE\software\python\pythoncore\2.7\pythonpath
        (Default)    REG_SZ
        C:\Python27\Lib;C:\Python27\DLLs;C:\Python27\Lib\lib-tk

In 2.x, lib-tk needs to be on sys.path because it isn't a package. In
3.3, it was reorganized into the tkinter package. A lot more changed
than simply Tkinter => tkinter. See PEP 3108 for a mapping between the
two:

http://www.python.org/dev/peps/pep-3108/#tkinter-package