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\subsection{Executing FRETBursts}  For interactive work, we strongly encourage to use FRETBursts through the IPython Notebook environment. All the FRETBursts tutorials are ipython notebook documents, and a quick way to start a new analysis is copying a pre-existing FRETBursts notebook and modifying it.  To import FRETBursts in an interactive shell or in a script we suggest The "notebook workflow" has  the convention \verb|import fretbursts as fbs|. advantage to automatically record all the analysis steps including the used data file, the software versions, analysis details and all the output (figures, tables, etc...).