[Numpy-discussion] Have a problem: what is attribute 'compress'
Todd Miller
jmiller at stsci.edu
Thu Jan 23 14:33:03 EST 2003
Sebastian Haase wrote:
>Hi,
>I can print numarray of any int time just fine, but
>
OK. I am assuming you deleted all of your old numarray installations as
I recommended and reinstalled numarray-0.4.
What is your PYTHONPATH?
>I still get the compress error message with Float (or complex)
>data:
>
>
>>>>c
>>>>array([[0, 0, 0, ..., 0, 0, 0],
>>>>
>>>>
> [0, 0, 0, ..., 0, 0, 0],
> [0, 0, 0, ..., 0, 0, 0],
> ...,
> [0, 0, 0, ..., 0, 0, 0],
> [0, 0, 0, ..., 0, 0, 0],
> [0, 0, 0, ..., 0, 0, 0]], type=UInt16)
>
>
>>>>c.astype(na.Float)
>>>>
>>>>
>Traceback (most recent call last):
> File "<input>", line 1, in ?
> File "C:\Python22\Lib\site-packages\numarray\numarray.py", line 581, in
>__repr__
> MAX_LINE_WIDTH, PRECISION, SUPPRESS_SMALL, ', ', 1)
> File "C:\Python22\Lib\site-packages\numarray\arrayprint.py", line 163, in
>array2string
> separator, array_output)
> File "C:\Python22\Lib\site-packages\numarray\arrayprint.py", line 125, in
>_array2string
> format, item_length = _floatFormat(data, precision, suppress_small)
> File "C:\Python22\Lib\site-packages\numarray\arrayprint.py", line 246, in
>_floatFormat
> non_zero = numarray.abs(numarray.compress(numarray.not_equal(data, 0),
>data))
>AttributeError: 'module' object has no attribute 'compress'
>
>I get this on Windows (2000) and on Linux. Both numarray 0.4
>
>
I'm not sure what's going on here, but I develop on both platforms,
and Linux constantly. The self tests definitely pass in Linux. It
must be some kind of environment issue or runtime issue. What happens
when you type:
>>> import numtestall
>>> numtestall.test()
... what gets printed here? ...
>Thanks,
>Sebastian
>
>
>
>----- Original Message -----
>From: "Todd Miller" <jmiller at stsci.edu>
>To: "Sebastian Haase" <haase at msg.ucsf.edu>
>Cc: <Numpy-discussion at lists.sourceforge.net>
>Sent: Thursday, December 19, 2002 5:58 AM
>Subject: Re: [Numpy-discussion] Have a problem: what is attribute 'compress'
>
>
>
>
>>Sebastian Haase wrote:
>>
>>
>>
>>>Hi!
>>>Somehow I have a problem with numarray. Please take a look at this:
>>>
>>>
>>>
>>Hi Sebastian,
>>
>>I've don't recall seeing anything like this, nor can I reproduce it
>>now. If you've been following numarray for a while now, I can say
>>that it is important to remove the old version of numarray before
>>installing the new version. I recommend deleting your current
>>installation and reinstalling numarray.
>>
>>compress() is a ufunc, much like add() or put(). It is defined in
>>ndarray.py, right after the import of the modules ufunc and _ufunc.
>>_ufunc in particular is a problematic module, because it has followed
>>the atypical development path of moving from C-code to Python code.
>> Because of this, and the fact that a .so or .dll overrides a .py,
>> older installations interfere with newer ones. The atypical path was
>>required because the original _ufuncmodule.c was so large that it could
>>not be compiled on some systems; as a result, I split _ufuncmodule.c
>>into pieces by data type and now use _ufunc.py to glue the pieces
>>
>>
>together.
>
>
>>Good luck! Please let me know if reinstalling doesn't clear up the
>>problem.
>>
>>Todd
>>
>>
>>
>>>
>>>
>>>>>>import numarray as na
>>>>>>na.array([0, 0])
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>array([0, 0])
>>>
>>>
>>>
>>>
>>>>>>na.array([0.0, 0.0])
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>Traceback (most recent call last):
>>> File "<input>", line 1, in ?
>>> File "C:\Python22\Lib\site-packages\numarray\numarray.py", line 581, in
>>>__repr__
>>> MAX_LINE_WIDTH, PRECISION, SUPPRESS_SMALL, ', ', 1)
>>> File "C:\Python22\Lib\site-packages\numarray\arrayprint.py", line 163,
>>>
>>>
>in
>
>
>>>array2string
>>> separator, array_output)
>>> File "C:\Python22\Lib\site-packages\numarray\arrayprint.py", line 125,
>>>
>>>
>in
>
>
>>>_array2string
>>> format, item_length = _floatFormat(data, precision, suppress_small)
>>> File "C:\Python22\Lib\site-packages\numarray\arrayprint.py", line 246,
>>>
>>>
>in
>
>
>>>_floatFormat
>>> non_zero = numarray.abs(numarray.compress(numarray.not_equal(data,
>>>
>>>
>0),
>
>
>>>data))
>>>AttributeError: 'module' object has no attribute 'compress'
>>>
>>>The same workes fine with Numeric. But I would prefer numarray because
>>>
>>>
>I'm
>
>
>>>writing C++-extensions and I need "unsigned shorts".
>>>
>>>What is this error about?
>>>
>>>Thanks,
>>>Sebastian
>>>
>>>
>>>
>>>
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>>
>>
>>
>>
>
>
>
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