Neutron scattering experiment automation with Python

PyDas is a set of Python modules that are used to integrate various components of the SNS DAS system. It enables customized automation of neutron scattering experiments in a rapid and flexible manner. It provides wxPython GUIs for routine experiments as well as IPython command line scripting. Matplotlib and NumPy are used for data presentation and simple analysis. We present an overview of SNS Data Acquisition System and PyDas architectures and implementation along with the examples of use. We also discuss plans for future development as well as the challenges that have to be met while maintaining PyDas for 20+ different scientific instruments.