numpy-discussion

Re: [Numpy-discussion] Use of numarray from numpy package [# INC NO 24609]

[LANDRIU D. S. <la...@di...>]

Hello,
 =20
  I come back to my question : how to use numarray=20
 with the numpy installation ?
 =20
 =20
  After some update in the system there is another=20
 error message :

>> AttributeError: 'module' object has no attribute 'NewAxis'

 It seems , from advice of the system manager, that an kind of=20
alias failed to execute the right action.
     =20

Thanks in advance for your answer,

   Cheers,
  =20
     David Landriu

------------- Begin Forwarded Message -------------


>Date: Wed, 30 Aug 2006 14:14:27 +0200 (MEST)
>To: LANDRIU David SAp <la...@di...>
>Subject: Re: Use of numarray from numpy package [# INC NO 24609]
>From: User Support <use...@cc...>
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>WW

Voici ce que j'obtiens maintenant :

{ccali22}~(0)>setenv PYTHONPATH /usr/local/lib/python2.3/site-packages/nump=
y
{ccali22}~(0)>
{ccali22}~(0)>
{ccali22}~(0)>python
Python 2.3.5 (#2, Oct 17 2005, 17:20:02)
[GCC 3.2.3 20030502 (Red Hat Linux 3.2.3-52)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from numarray import *
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
AttributeError: 'module' object has no attribute 'NewAxis'
>>>


##############################################
##############################################

Hello,

   is it necessary to install numarray separately to use numpy ?
  =20
  Indeed, after numpy installation, when I try to use it in the code,
 I get the same error as below :
=20
.../...=20
Python 2.4.1 (#1, May 13 2005, 13:45:18)
[GCC 3.2.3 20030502 (Red Hat Linux 3.2.3-42)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from numarray import *
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/usr/local/lib/python2.3/site-packages/numpy/numarray/__init__.py",=
 line 1, in ?
    from util import *
  File "/usr/local/lib/python2.3/site-packages/numpy/numarray/util.py", lin=
e 2, in ?
    from numpy import geterr
ImportError: No module named numpy
>>>

  Thanks for your answer,
 =20
     Cheers,
    =20
       David Landriu
=20




--------------------------------------------------------------------

David Landriu                 DAPNIA/SAp CEA SACLAY  (France)              =
    =20

Phone  : (33|0)169088785=20
Fax    : (33|0)169086577=20

---------------------------------------------------------------------

Re: [Numpy-discussion] Use of numarray from numpy package

[Joris De R. <jo...@st...>]

Hi David,

Numeric, numarray and numpy are three different packages that can
live independently, but that can also coexist if you like so. If you're new
to this packages, you should stick to numpy, as the other ones are
getting phased out.

It's difficult to see what's going wrong without having seen how you
installed it.

I see that you tried
>>> from numarray import *

Perhaps a stupid question, but you did import numpy with 
>>> from numpy import *
didn't you?

Cheers,
Joris


Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm

Re: [Numpy-discussion] Use of numarray from numpy package [# INC NO 24609]

[Perry G. <pe...@st...>]

On Aug 30, 2006, at 8:51 AM, LANDRIU David SAp wrote:

> Hello,
>
>   I come back to my question : how to use numarray
>  with the numpy installation ?
>
If you are using both at the same time, one thing you don't want to  
do is

from numpy import *
from numarray import *

You can do that with one or the other but not both. Are you doing that?

Perry Greenfield

Re: [Numpy-discussion] Use of numarray from numpy package [# INC NO 24609]

[Andrew S. <str...@as...>]

LANDRIU David SAp wrote:
> Hello,
>   
>   I come back to my question : how to use numarray 
>  with the numpy installation ? 
>   
> {ccali22}~(0)>setenv PYTHONPATH /usr/local/lib/python2.3/site-packages/numpy
>   
Here's where you went wrong. You want:

setenv PYTHONPATH /usr/local/lib/python2.3/site-packages

> {ccali22}~(0)>python
> Python 2.3.5 (#2, Oct 17 2005, 17:20:02)
> [GCC 3.2.3 20030502 (Red Hat Linux 3.2.3-52)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>   
>>>> from numarray import *
>>>>         
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File "/usr/local/lib/python2.3/site-packages/numpy/numarray/__init__.py", line 1, in ?
>     from util import *
>   File "/usr/local/lib/python2.3/site-packages/numpy/numarray/util.py", line 2, in ?
>     from numpy import geterr
> ImportError: No module named numpy
>   

Note that you're actually importing a numarray within numpy's directory
structure. That's because of your PYTHONPATH. numpy ships numpy.numarray
to provide backwards compatibility. To use it, you must do "import
numpy.numarray as numarray"

Cheers!
Andrew

Re: [Numpy-discussion] Use of numarray from numpy package [# INC NO 24609]

[Sebastian H. <ha...@ms...>]

Andrew Straw wrote:
> LANDRIU David SAp wrote:
>> Hello,
>>   
>>   I come back to my question : how to use numarray 
>>  with the numpy installation ? 
>>   
>> {ccali22}~(0)>setenv PYTHONPATH /usr/local/lib/python2.3/site-packages/numpy
>>   
> Here's where you went wrong. You want:
> 
> setenv PYTHONPATH /usr/local/lib/python2.3/site-packages
> 
>> {ccali22}~(0)>python
>> Python 2.3.5 (#2, Oct 17 2005, 17:20:02)
>> [GCC 3.2.3 20030502 (Red Hat Linux 3.2.3-52)] on linux2
>> Type "help", "copyright", "credits" or "license" for more information.
>>   
>>>>> from numarray import *
>>>>>         
>> Traceback (most recent call last):
>>   File "<stdin>", line 1, in ?
>>   File "/usr/local/lib/python2.3/site-packages/numpy/numarray/__init__.py", line 1, in ?
>>     from util import *
>>   File "/usr/local/lib/python2.3/site-packages/numpy/numarray/util.py", line 2, in ?
>>     from numpy import geterr
>> ImportError: No module named numpy
>>   
> 
> Note that you're actually importing a numarray within numpy's directory
> structure. That's because of your PYTHONPATH. numpy ships numpy.numarray
> to provide backwards compatibility. To use it, you must do "import
> numpy.numarray as numarray"
> 

Just to explain -- there is only a numarray directory inside numpy
to provide some special treatment for people that do the transition from 
numarray to numpy  - meaning: they can do somthing like
from numpy import numarray
and get a "numpy(!) version"  that behaves more like numarray than the 
straight numpy ...

Similar for
"from numarray import oldnumaric as Numeric" (for people coming from 
Numeric )

Yes - it is actually confusing, but that's the baggage when there are 2 
(now 3) numerical python packages is human history.
The future will be much brighter  - forget all of the above, and just use
import numpy
(I like "import numpy as N" for less typing - others prefer even
"from numpy import *"
)

Hope that helps,
- Sebastian Haase

Re: [Numpy-discussion] Use of numarray from numpy package [# INC NO 24609]

[Christopher B. <Chr...@no...>]

Andrew Straw wrote:
>> {ccali22}~(0)>setenv PYTHONPATH /usr/local/lib/python2.3/site-packages/numpy
>>   
> Here's where you went wrong. You want:
> 
> setenv PYTHONPATH /usr/local/lib/python2.3/site-packages

Which you shouldn't need at all. site-packages should be on sys.path by 
default.

-Chris



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