Re: [Matplotlib-users] Crash on import with CGI wrapped by PHP--unhappywith .matplotlib directory?

[Rodney H. <RH...@co...>]

Jonathan,
If you did not get a response by now, you can try the following.
 
import os# set HOME environment variable to a directory the httpd server can
write to
os.environ[ 'HOME' ] = 'c:/www/app/tmp/'

 
Good luck.
-Rodney

 
  _____  

From: mat...@li...
[mailto:mat...@li...] On Behalf Of
"Jonathan Hayward, http://JonathansCorner.com"
Sent: Friday, August 01, 2008 11:26 AM
To: Matplotlib
Subject: [Matplotlib-users] Crash on import with CGI wrapped by
PHP--unhappywith .matplotlib directory?


I have a PHP script which authenticates a user and I am trying to get the
PHP script to wrap a Python script using matplotlib.

As it is, the script mostly works when invoked from the command line or as
its own CGI script. When I call it from a PHP script, it doesn't produce
output, and testing found that when I call a Python script from a PHP
script, output works before but not after "import matplotlib": if the PHP
script calls a script of:


#!/usr/bin/python
print "Before import matplotlib."
import matplotlib;
print "After import matplotlib."


the first print statement succeeds but the second one fails; the server log
shows a crash of:


Before import matplotlib.Traceback (most recent call last):
  File "/home/jhayward/bintmp/test.py", line 5, in <module>
    import matplotlib;
  File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
639, in <module>
    rcParams = rc_params()
  File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
562, in rc_params
    fname = matplotlib_fname()
  File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
513, in matplotlib_fname
    fname = os.path.join(get_configdir(), 'matplotlibrc')
  File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
207, in wrapper
    ret = func(*args, **kwargs)
  File "/usr/lib64/python2.5/site-packages/matplotlib/__init__.py", line
403, in _get_configdir
    raise RuntimeError("Failed to create %s/.matplotlib; consider setting
MPLCONFIGDIR to a writable directory for matplotlib configuration data"%h)
RuntimeError: Failed to create /root/.matplotlib; consider setting
MPLCONFIGDIR to a writable directory for matplotlib configuration data


I think this error is somewhat misleading; it persisted after I ran a "chmod
-R 1777 /root/.matplotlib".

What is the proper way to adjust things so matplotlib will be happy with its
.matplotlib directory?

-- 
-- Jonathan Hayward, chr...@gm...

** To see an award-winning website with stories, essays, artwork,
** games, and a four-dimensional maze, why not visit my home page?
** All of this is waiting for you at http://JonathansCorner.com

++ Would you like to curl up with one of my hardcover books?
++ You can now get my books from http://CJSHayward.com