[BioPython] problems installing mxtools

[Maurice Ling]

Hi,

i have some problems installing the mxtools. these are my steps...

1. download and unpack
2. "python setup.py build"
3. "sudo python setup.py install"

but the output is this...

running install
running build
running mx_autoconf
gcc -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -D_GNU_SOURCE=1 
-I/System/Library/Frameworks/Python.framework/Versions/2.3/include/python2.3 
-I/usr/local/include 
-I/System/Library/Frameworks/Python.framework/Versions/2.3/include -c 
_configtest.c -o _configtest.o
success!
removing: _configtest.c _configtest.o
running build_ext
running build_py
running install_lib
creating 
/System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site-packages
error: could not create 
'/System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site-packages': 
File exists

so, i'm wondering what's wrong??

thanks,
maurice