Re: stuck on install

I think creating the "Ngl" softlink caused a problem.

Perhaps instead of a softlink, you should either remove it, or create
an "Ngl" directory and just copy the PyNGL contents to it.

However, having the "Ngl.pth" file with the single line "PyNGL"
in it should be enough to get this working.

To summarize then, your directory
/usr/local/pyngl/lib64/python2.4/site-packages should look like this:

   Ngl.pth PyNGL PyNGL.pth

where "Ngl.pth" and "PyNGL.pth" have the same "PyNGL" line.

Then, as long as /usr/local/pyngl/lib64/python2.4/site-packages
is still on your PYTHONPATH, python should find the "Ngl.pth",
and hence know to look in the "PyNGL" directory.

--Mary

On Wed, 8 Apr 2009, Gavin Burris wrote:

> # python
> Python 2.4.3 (#1, May 24 2008, 13:57:05)
> [GCC 4.1.2 20070626 (Red Hat 4.1.2-14)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import Ngl
>>>> dir(Ngl)
> ['__builtins__', '__doc__', '__file__', '__name__', '__path__']
>>>> Ngl.pynglpath("ncarg")
> Traceback (most recent call last):
> File "<stdin>", line 1, in ?
> AttributeError: 'module' object has no attribute 'pynglpath'
>>>>
>
> Again, the same with the binary and with my source build.
>
>
> Mary Haley wrote:
>> Gavin,
>>
>> Can you type:
>>
>> python
>> import Ngl
>> dir(Ngl)
>> Ngl.pynglpath("ncarg")
>>
>> and send me the output.
>>
>> --Mary
>>
>> On Apr 8, 2009, at 7:16 AM, Gavin Burris wrote:
>>
>>> I had to link the PyNGL directory to Ngl as well.
>>>
>>> # cd /usr/local/pyngl/lib64/python2.4/site-packages
>>> # ln -s PyNGL Ngl
>>>
>>> Now "import Ngl" works without error, but I am getting the following:
>>>
>>> # pynglex -a
>>> Traceback (most recent call last):
>>> File "/usr/local/pyngl/bin/pynglex", line 118, in ?
>>> os.environ["NCARG_NCARG"] = Ngl.pynglpath("ncarg")
>>> AttributeError: 'module' object has no attribute 'pynglpath'
>>>
>>>
>>> Mary Haley wrote:
>>>>
>>>> On Tue, 7 Apr 2009, Gavin Burris wrote:
>>>>
>>>>> Hi Mary,
>>>>>
>>>>> Any help is appreciated. I receive the same error from the binary
>>>>> download or my own source build. Here is the session log:
>>>>>
>>>>> # which python
>>>>> /usr/bin/python
>>>>> # ls /usr/local/pyngl/lib64/python2.4/site-packages
>>>>> PyNGL PyNGL.pth
>>>>> # ls /usr/local/pyngl/lib64/python2.4/site-packages/PyNGL
>>>>> fplib.so hlu.pyc __init__.py ncarg Ngl.pyc
>>>>> pyngl_version.pyc
>>>>> hlu.py _hlu.so __init__.pyc Ngl.py pyngl_version.py
>>>>> # echo $PYTHONPATH
>>>>> /usr/local/pyngl/lib64/python2.4/site-packages:
>>>>
>>>> Gavin,
>>>>
>>>> Sorry for the hassle.
>>>>
>>>> I think there's a problem with the PyNGL installation that I need to
>>>> fix. The "PyNGL.pth" file should be "Ngl.pth".
>>>>
>>>> Try copying PyNGL.pth to Ngl.pth:
>>>>
>>>> cp /usr/local/pyngl/lib64/python2.4/site-packages/PyNGL/PyNGL.pth
>>>> /usr/local/pyngl/lib64/python2.4/site-packages/PyNGL/Ngl.pth
>>>>
>>>> Now, when you "import Ngl", it should look in your PYTHONPATH,
>>>> see the "Ngl.pth" which contains the directory name "PyNGL",
>>>> and know where to get the "Ngl" module.
>>>>
>>>> --Mary
>>>>
>>>>
>>>>
>>>>> # python
>>>>> Python 2.4.3 (#1, May 24 2008, 13:57:05)
>>>>> [GCC 4.1.2 20070626 (Red Hat 4.1.2-14)] on linux2
>>>>> Type "help", "copyright", "credits" or "license" for more information.
>>>>>>>> import numpy
>>>>>>>> import Ngl
>>>>> Traceback (most recent call last):
>>>>> File "<stdin>", line 1, in ?
>>>>> ImportError: No module named Ngl
>>>>>>>>
>>>>>
>>>>>
>>>>> Mary Haley wrote:
>>>>>>
>>>>>> Hi Gavin,
>>>>>>
>>>>>> Sorry I haven't responded sooner, I've been on vacation.
>>>>>>
>>>>>> Can you type the following and email me the output:
>>>>>>
>>>>>> which python
>>>>>> ls /usr/local/pyngl/lib64/python2.4/site-packages
>>>>>> ls /usr/local/pyngl/lib64/python2.4/site-packages/PyNGL
>>>>>>
>>>>>> And then type the following python session and send me the output:
>>>>>>
>>>>>> python
>>>>>> import numpy
>>>>>> import Ngl
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> --Mary
>>>>>>
>>>>>>
>>>>>> On Fri, 3 Apr 2009, Gavin Burris wrote:
>>>>>>
>>>>>>> Hello PyNGL people,
>>>>>>>
>>>>>>> I hope you can give me some pointers. I am trying to install
>>>>>>> PyNGL on
>>>>>>> Red Hat / CentOS 5 x86-64, and I am stuck. I have tried the binaries
>>>>>>> and I have also built successfully from source code, but I still get
>>>>>>> "unable to import" for Ngl.
>>>>>>>
>>>>>>>
>>>>>>> # export NCARG_ROOT=/usr/local/ncarg
>>>>>>> # export PATH=$NCARG_ROOT/bin:$PATH
>>>>>>> # export LD_LIBRARY_PATH=$NCARG_ROOT/lib:$LD_LIBRARY_PATH
>>>>>>> # export PATH=/usr/local/pyngl/bin:$PATH
>>>>>>> # export LD_LIBRARY_PATH=/usr/local/pyngl/lib64:$LD_LIBRARY_PATH
>>>>>>> # export
>>>>>>> PYTHONPATH=/usr/local/pyngl/lib64/python2.4/site-packages:$PYTHONPATH
>>>>>>> # export
>>>>>>> PYNGL_NCARG=/usr/local/pyngl/lib64/python2.4/site-packages/PyNGL/ncarg
>>>>>>>
>>>>>>> # export
>>>>>>> NCARG_NCARG=/usr/local/pyngl/lib64/python2.4/site-packages/PyNGL/ncarg
>>>>>>>
>>>>>>> # pynglex -a
>>>>>>>
>>>>>>> Error: I am unable to import the NumPy version of Ngl via
>>>>>>> 'import Ngl'.
>>>>>>>
>>>>>>>
>>>>>>> Thank you for your time.
>>>>>>> _______________________________________________
>>>>>>> pyngl-talk mailing list
>>>>>>> List instructions, subscriber options, unsubscribe:
>>>>>>> http://mailman.ucar.edu/mailman/listinfo/pyngl-talk
>>>>>>>
>>>>>>
>>>>>
>>>>
>>
>
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Received on Wed Apr 08 2009 - 09:38:24 MDT