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problem with import pylab from a website


Hello All,
I am facing a problem while importing pylab library(in a .py program file) via
web browser however the same program works when I execute it from the command
prompt.
my configuration :

Fedora Core 3
Apache 2.0
python 2.3.4
postgresql 7.3.4
mod_python-3.1.3-5

Error message we get:

[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] Traceback (most
recent call last):, referer: http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] File
"/var/www/html/sensor_data/get_graph.py", line 15, in ?, referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] import pylab,
referer: http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] File
"/usr/lib/python2.3/site-packages/pylab.py", line 1, in ?, referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] from
matplotlib.pyla b import *, referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] File
"/usr/lib/python2.3/site-packages/matplotlib/pylab.py", line 184, in ?, referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] from axes import
Axes, PolarAxes, referer: http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] File
"/usr/lib/python2.3/site-packages/matplotlib/axes.py", line 14, in ?, referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] from axis import
XAxis, YAxis, referer: http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] File
"/usr/lib/python2.3/site-packages/matplotlib/axis.py", line 20, in ?, referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] from font_manager
import FontProperties, referer: http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] File
"/usr/lib/python2.3/site-packages/matplotlib/font_manager.py ", line 942, in ?,
referer: http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] fontManager =
FontManager(), referer: http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] File
"/usr/lib/python2.3/site-packages/matplotlib/font_manager.py ", line 786, in
__init__, referer: http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] rebuild(), referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] File
"/usr/lib/python2.3/site-packages/matplotlib/font_manager.py ", line 780, in
rebuild, referer: http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101]
pickle.dump(sel f.ttfdict, file(ttfcache, 'w')), referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] IOError, referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] : , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] [Errno 13]
Permission denied: '/usr/share/matplotlib/.ttffont.cache' , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] , referer:
http://128.178.156.101/sensor_data/readings.php
[Wed Jan 19 09:43:58 2005] [error] [client 128.178.156.101] Premature end of
script headers: get_graph.py, referer:
http://128.178.156.101/sensor_data/readings.php

Thanks in advance.

Regards,
jean
Jul 18 '05 #1
1 2701
je**********@ep fl.ch wrote:
Permission denied: '/usr/share/matplotlib/.ttffont.cache' , referer:


It could be that the webserver runs as a user that does not
have access to certain locations.

Istvan.
Jul 18 '05 #2

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