I have radius 3.0.13 installed and working with rlm_python. I am able to send a RLM_MODULE_OK from within the authorize function. In my sites-enabled I have python { module = example python_path = ${modconfdir}/${.:name} mod_authorize = ${.module} func_authorize = authorize } I have installed sqlalchemy, a Python library and it is correctly installed; as I can see from $ python -c "import sqlalchemy; print sqlalchemy.__version__" 1.1.3 However when I try using it inside of my file being called from rlm_python, I am getting Python version: 2.7.12 (default, Jul 1 2016, 15:12:24) [GCC 5.4.0 20160609] System exec is python_function_load - Module 'example' not found <type 'exceptions.ImportError'> (No module named sqlalchemy) python_function_load - Failed to import python function 'example.authorize' /usr/local/etc/raddb/mods-enabled/python[1]: Instantiation failed for module "python" Is the python binary being used by rlm_python different from the system binary? My radiusd version is radiusd: FreeRADIUS Version 3.0.13 (git #7758e73), -- Regards, Azeem