On 2007-08-16 08:52+0100 Andrew Ross wrote:
>
> Alan,
>
> Example 21 is now disabled in the automatic tests since is doesn't work
> with Numeric anyway.
>
> I've commented out the use of RandomArray for now since the only place
> it is used is in example 21. Example 17 actually uses random.random,
> which is part of python. This only generates single random numbers
> though, not an array of random numbers.
>
> Works for me - can you check?
Hi Andrew:
This thread has spawned a number of related sub-topics which I want to
address here. Let me take them one at a time....
(1) Sorry for the false alarm about RandomArray. I did have
python-numeric-ext installed, but that referred to the python-2.3 version
while I am running PLplot off of python-2.4. The fix was to install
python2.4-numeric-ext. For now this minor Python versioning issue is not an
issue for RandomArray because you have disabled its use in your current
workaround, but at some point if such versioning issues get irritating
enough we may want to take over maintenance of the CMake
FindPythonLibs.cmake and FindPythonInterp.cmake modules and bring them into
the modern world.
(2) For exactly the same revision as last night (i.e., without your recent
workaround to disable example 21) and with python2.4-numeric-ext installed,
the error messages from ctest turned into
*** PLPLOT ERROR ***
plw3d: Invalid axis range, aborting operation
*** PLPLOT WARNING ***
plot3dcl: Maximum and minimum Z values are equal! "fixing"...
*** PLPLOT ERROR ***
plw3d: Invalid axis range, aborting operation
....
-- Process completed
Passed
The following tests passed:
examples_python
>From your remarks and my later successful test with your workaround (see 3
below) those errors are due to example 21 (without your update to disable
it). But why do all those PLPLOT ERRORs not propagate to the overall test
status? If somebody ran the test without verbose, they would be convinced
all was well with python even when example 21 has problems. The question
boils down to why a python error such as a missing module generates a
non-zero status code (which we do test for in test/test_python.sh), but
PLPLOT ERROR does not. Hope you know how to fix this PLPLOT ERROR irritation
with ctest (which I assume is a general PLplot problem and nothing
specifically to do with our python interface).
(3) With your workaround (Updated to revision 7807), I confirm that ctest
works fine. However, Numeric is deprecated in favour of NumPy so I don't
think we should cater to the Numeric deficiencies if the user has already
upgraded to NumPy. So I think a better workaround would be to go ahead and
import RandomArray (which makes current Numeric users like me import
something they don't need, but too bad), and configure the examples list to
exclude example 21 (perhaps with a warning message to upgrade to NumPy) if
the user is using the deprecated Numeric interface. What do you think of
this approach?
BTW, I assume you agree with me there is no point at this stage in trying to
get plgriddata to work for Numeric. In my view Numeric is a dead duck; I
don't think the major Linux distros will support it on their own for too
much longer since the core Numeric team has given up on it and joined the
NumPy bandwagon. Anyhow, I personally plan to migrate to NumPy after I have
finished my current research project.
Alan
__________________________
Alan W. Irwin
Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).
Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________
Linux-powered Science
__________________________
-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems? Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
Plplot-devel mailing list
Plplot-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/plplot-devel
