I am trying use matplotlib on CentOS through a PHP script. If I run it on the command line it works fine and generates a PNG figure. If I run with another user,
sudo -u apache python filename.py
it gives error: Cannot obtain dvipng version.
Any ideas? I search the net but no answers. It looks like a bug? In the script I am using TeX.
Texlive and dvipng are installed and paths are set correctly.