old_contents: from __future__ import division, print_function
  
  import datetime
  
  import timeline
  
  from collections import *
  
  def describe( data ):
      if len(data) == 0:
          print( "Dataset empty." )
          return
  
      print( "Entries together", len(data) )
      print( "Number of different authors", len( set( map( lambda d: d['creator'], filter( lambda d: d['creator'] is not '', data ) ) ) ) )
  
      ## remove dates which can not be true
      date_ok = filter( lambda d: d['timestamp'] is not '', data )
      date_ok = filter( lambda d: d['timestamp'] > datetime.datetime(1970,1,1,0,10), date_ok )
  
      print( "First post", min( map( lambda d: d['timestamp'], date_ok ) ) )
      print( "Last post", max( map( lambda d: d['timestamp'], date_ok  ) ) )
  
      print("Data sources")
  
      ## todo: reimplement?
      counter = defaultdict( int )
  
      for post in data:
          counter[ post['source_detail'] ] += 1
  
      for name, count in counter.items():
          print( '-', name, count )
  
      return timeline.create_timeline( datasets = [data] )
  
  
  if __name__ == '__main__':
  
      for function_name in dir( data_loader ):
  
          if 'load_' in function_name:
  
              print( function_name )
              f =  getattr( data_loader, function_name )
              data = f()
              describe( data )
  
new_contents: from __future__ import division, print_function
  
  import datetime
  
  from timeline import module_timeline
  
  from collections import *
  
  def describe( data ):
      if len(data) == 0:
          print( "Dataset empty." )
          return
  
      print( "Entries together", len(data) )
      print( "Number of different authors", len( set( map( lambda d: d['creator'], filter( lambda d: d['creator'] is not '', data ) ) ) ) )
  
      ## remove dates which can not be true
      date_ok = filter( lambda d: d['timestamp'] is not '', data )
      date_ok = filter( lambda d: d['timestamp'] > datetime.datetime(1970,1,1,0,10), date_ok )
  
      print( "First post", min( map( lambda d: d['timestamp'], date_ok ) ) )
      print( "Last post", max( map( lambda d: d['timestamp'], date_ok  ) ) )
  
      print("Data sources")
  
      ## todo: reimplement?
      counter = defaultdict( int )
  
      for post in data:
          counter[ post['source_detail'] ] += 1
  
      for name, count in counter.items():
          print( '-', name, count )
  
      return module_timeline.create_timeline( datasets = [data] )
  
  
  if __name__ == '__main__':
  
      for function_name in dir( data_loader ):
  
          if 'load_' in function_name:
  
              print( function_name )
              f =  getattr( data_loader, function_name )
              data = f()
              describe( data )
  
subject: Fix timeline module import