Getting started

The main ingredients of Ostap are

• preconfigured ipython script ostap, that can be invoked from the command line.

  ostap
  

  Challenge

  Invoke the script with -h option to get the whole list of all command line options and keys

  Optionally one can specify the list of python files to be executed before appearance of the interactive command prompt:

  ostap a.py b.py c.py d.py
  

  The list of optional arguments can include also root-files, in this case the files will be opened and their handlers will be available via local list root_files

  ostap a.py b.py c.py d.py file1.root file2.root e.py file3.root
  

  Also ROOT macros can be specified on the command line

  ostap a.py b.py c.py d.py file1.root q1.C file2.root q2.C e.py file3.root q4.C
  

The script automatically opens TCanvas window (unless --no-canvas option is specified) with (a little bit modified) LHCb style. It also loads necessary decorators for ROOT classes. At last it executes the python scripts and opens root-files, specified as command line arguments.