Problem with python 3.2 and circular imports

[Rafael Durán Castañeda]

Thank you for your answer Frank, I think I've found the problem. I was
calling modules from inside subpackages, and I need to use them from
outside, so I have package in PYTHONPATH. is that correct? But now I have
another question: Can I execute an script inside subpackage1 importig
modules from subpackage2?

2011/3/4 Frank Millman <frank at chagford.com>

>
> On February 28 2011 Rafael Durán Castañeda wrote
>
>  I'm stil totally stuck with relative imports, i' ve tried the example tree
>> from PEP 328 without any result:
>>
>> package/
>>   __init__.py
>>   subpackage1/
>>       __init__.py
>>       moduleX.py
>>       moduleY.py
>>   subpackage2/
>>       __init__.py
>>       moduleZ.py
>>   moduleA.py
>>
>> Assuming that the current file is either moduleX.py or
>> subpackage1/__init__.py, following are correct usages of the new
>> syntax:
>>
>> from .moduleY import spam
>> from .moduleY import spam as ham
>> from . import moduleY
>> from ..subpackage1 import moduleY
>> from ..subpackage2.moduleZ import eggs
>> from ..moduleA import foo
>> from ...package import bar
>> from ...sys import path
>>
>> I always get:
>>
>> Traceback (most recent call last):
>>  File "moduleY.py", line 1, in <module>
>>   from ..moduleA import a
>> ValueError: Attempted relative import in non-package
>>
>>
>>
> Hi Rafael
>
> I only just noticed your message now. For some reason it did not appear on
> google.groups.
>
> I just tried it and it worked for me. This is what I did.
>
> I set up the above structure. I added a 'def spam()' to moduleY, 'def
> eggs()' to moduleZ, and 'def foo()' to moduleA.
>
> I pasted all of the 'from ... import ...' lines above into moduleX.
>
> In the same directory that contains the subdirectory 'package' I create a
> test script containing the following line -
>   import package.subpackage1.moduleX
>
> To begin with it failed on the last two lines starting with 'from ...' [how
> do you indicate three dots followed by etc etc, which would normally be
> indicated by three dots!]. The traceback said 'Attempted relative import
> beyond toplevel package'.
>
> I did not want to investigate too deeply so I just commented those lines
> out, and now it runs with no errors. I even put a couple of print statements
> (or must I call them print functions now) into the modules being imported,
> and the messages do appear, so the modules are being imported.
>
> HTH
>
> Frank Millman
>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
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