def calc2():
     append('out/calc', 'A')
     x = 5
     return pydataframe.DataFrame({
         "X": list(range(0, 100)),
         'Y': list(range(50, 150))
     })
 def calc():
     return pydataframe.DataFrame({
         "X": list(range(0, 100)),
         'Y': list(range(50, 150))
     })