text: # ---
  # jupyter:
  #   jupytext:
  #     cell_markers: '{{{,}}}'
  #   kernel_info:
  #     name: python3
  #   kernelspec:
  #     display_name: Python 3
  #     language: python
  #     name: python3
  # ---
  
  # {{{ {"outputHidden": false, "inputHidden": false, "tags": ["parameters"]}
  param = 4
  # }}}
  
  # {{{ {"outputHidden": false, "inputHidden": false}
  import pandas as pd
  # }}}
  
  # {{{ {"outputHidden": false, "inputHidden": false}
  df = pd.DataFrame({'A': [1, 2], 'B': [3 + param, 4]},
                    index=pd.Index(['x0', 'x1'], name='x'))
  df
  # }}}
  
  # {{{ {"outputHidden": false, "inputHidden": false}
  # %matplotlib inline
  df.plot(kind='bar')
  # }}}
  