package questions

[Daniel]

Hello,

I've posted about this before, but after reading the docs, I have a
few more questions
here are the docs: http://docs.python.org/tutorial/modules.html#packages
here is my previous post:
http://groups.google.com/group/comp.lang.python/browse_thread/thread/3a352159f6828eb9/cda8395d36827d20

I've setup some directories for the sound package, exactly as shown in
the examples in the docs.  In the surround file I put the lines

from . import echo
from .. import formats
from ..filters import equalizer

again, exactly as in the docs.  When I run surround.py, I get the
following result:
C:\sound\effects>python surround.py
Traceback (most recent call last):
  File "surround.py", line 1, in <module>
    from . import echo
ValueError: Attempted relative import in non-package

C:\sound\effects>

Why doesn't this work as suggested in the docs.  The only way that I
found to get around this is to add directories to the path, but I
can't help but think that it shouldn't be necessary to modify the path
for packages to work.

Just to be sure, here are directory listings showing the I have the
__init__.py files in place

C:\sound\effects>dir
 Volume in drive C is Default
 Volume Serial Number is 8CD7-71F6

 Directory of C:\sound\effects

05/22/2009  10:07 AM    <DIR>          .
05/22/2009  10:07 AM    <DIR>          ..
05/22/2009  10:06 AM                 0 echo.py
05/22/2009  10:16 AM               189 surround.py
05/22/2009  10:04 AM                 0 __init__.py
               3 File(s)            189 bytes
               2 Dir(s)  50,860,060,672 bytes free

C:\POP\sound\effects>dir ..\
 Volume in drive C is Default
 Volume Serial Number is 8CD7-71F6

 Directory of C:\sound

05/22/2009  10:04 AM    <DIR>          .
05/22/2009  10:04 AM    <DIR>          ..
05/22/2009  10:07 AM    <DIR>          effects
05/22/2009  10:06 AM    <DIR>          filters
05/22/2009  10:04 AM    <DIR>          formats
05/22/2009  10:04 AM                 0 __init__.py
               1 File(s)              0 bytes
               5 Dir(s)  50,859,077,632 bytes free

C:\sound\effects>dir ..\filters
 Volume in drive C is Default
 Volume Serial Number is 8CD7-71F6

 Directory of C:\sound\filters

05/22/2009  10:06 AM    <DIR>          .
05/22/2009  10:06 AM    <DIR>          ..
05/22/2009  10:06 AM                 0 equalizer.py
05/22/2009  10:04 AM                 0 __init__.py
               2 File(s)              0 bytes
               2 Dir(s)  50,859,077,632 bytes free

Please share any feedback.  Thanks.