1. About this Tutorial

The main objective of this session is to introduce and to explain the new Python interface for accessing LCLS data. This software framework is known as the "Interactive psana" or ipsana for short. The first idea of implementing such tool was suggested around 1.5 years ago at the joint PCDS/SRD meeting (look for ipsana). Though its underlying machinery is largely based on the batch version of psana the interface to the data is simpler, more intuitive, and it requires less code to be written by a user in order to get to that CSPad image or that EPICS PV. The new framework won't work for everyone, specifically for those users who have either heavily invested into the modular code of the batch framework, or who need the performance of modules written in C++. Still our intent is to demonstrate the power of the new approach and to encourage using the tool where appropriate.

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