ZeroDivisionError

[cphyc]

Hi, when I try to read an history file that is only one line long, I get an error at this line https://github.com/NuGrid/NuGridPy/blob/master/mesa.py#L3762:

      6 import matplotlib.pyplot as plt
      7 
----> 8 his = ms.history_data('.', slname='e_his_30_L20.data')

/usr/lib/python2.7/site-packages/mesa.pyc in __init__(self, sldir, slname, clean_starlog, mass, Z)
    861                 self._read_starlog()
    862         else:
--> 863             self._read_starlog()
    864 
    865     def __del__(self):

/usr/lib/python2.7/site-packages/mesa.pyc in _read_starlog(self)
    891         filename=sldir+'/'+slaname
    892 
--> 893         header_attr,cols,data = _read_mesafile(filename,data_rows=num_cycles)
    894 
    895         self.cols        = cols

/usr/lib/python2.7/site-packages/mesa.pyc in _read_mesafile(filename, data_rows, only)
   3752     for i in range(data_rows):
   3753         # writing reading status
-> 3754         percent = int(i*100/(data_rows-1))
   3755         if percent >= old_percent + 5:
   3756             sys.stdout.flush()

ZeroDivisionError: integer division or modulo by zero

There is a very quick hotfix by replacing data_rows-1 by max(1, data_rows-1).