pvmismatch module simulator

$ python ModuleMismatchSimulator.py
Module Size? (1=72c, 2=96c, 3=128c): 2
Cell temperature (deg C)? 45
Pmp0: 305.966028931

#Cells %Shade  Pmp   %ofPmp0
----------------------------
Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 1537, in __call__
    return self.func(*args)
  File "C:\Python27\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 402, in button_pre
ss_event
    FigureCanvasBase.button_press_event(self, x, y, num, dblclick=dblclick, guiEvent=event)
  File "C:\Python27\lib\site-packages\matplotlib\backend_bases.py", line 1909, in button_press_event

    self.callbacks.process(s, mouseevent)
  File "C:\Python27\lib\site-packages\matplotlib\cbook.py", line 549, in process
    proxy(*args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\cbook.py", line 416, in __call__
    return mtd(*args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\widgets.py", line 434, in _update
    self.set_val(val)
  File "C:\Python27\lib\site-packages\matplotlib\widgets.py", line 448, in set_val
    func(val)
  File "ModuleMismatchSimulator.py", line 423, in full_update
    allCalc(ivp0, ps, sw, sh, sx, sy)
  File "ModuleMismatchSimulator.py", line 307, in allCalc
    numberCells=pvmod1.numberCells))
  File "ModuleMismatchSimulator.py", line 97, in __init__
    self.shadecells.append(module[j - 1, i - 1])
IndexError: only integers, slices (`:`), ellipsis (`...`), numpy.newaxis (`None`) and integer or boo
lean arrays are valid indices
Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 1537, in __call__
    return self.func(*args)
  File "C:\Python27\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 402, in button_pre
ss_event
    FigureCanvasBase.button_press_event(self, x, y, num, dblclick=dblclick, guiEvent=event)
  File "C:\Python27\lib\site-packages\matplotlib\backend_bases.py", line 1909, in button_press_event

    self.callbacks.process(s, mouseevent)
  File "C:\Python27\lib\site-packages\matplotlib\cbook.py", line 549, in process
    proxy(*args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\cbook.py", line 416, in __call__
    return mtd(*args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\widgets.py", line 434, in _update
    self.set_val(val)
  File "C:\Python27\lib\site-packages\matplotlib\widgets.py", line 448, in set_val
    func(val)
  File "ModuleMismatchSimulator.py", line 423, in full_update
    allCalc(ivp0, ps, sw, sh, sx, sy)
  File "ModuleMismatchSimulator.py", line 307, in allCalc
    numberCells=pvmod1.numberCells))
  File "ModuleMismatchSimulator.py", line 97, in __init__
    self.shadecells.append(module[j - 1, i - 1])
IndexError: only integers, slices (`:`), ellipsis (`...`), numpy.newaxis (`None`) and integer or boo
lean arrays are valid indices
Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 1537, in __call__
    return self.func(*args)
  File "C:\Python27\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 420, in button_rel
ease_event
    FigureCanvasBase.button_release_event(self, x, y, num, guiEvent=event)
  File "C:\Python27\lib\site-packages\matplotlib\backend_bases.py", line 1932, in button_release_eve
nt
    self.callbacks.process(s, event)
  File "C:\Python27\lib\site-packages\matplotlib\cbook.py", line 549, in process
    proxy(*args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\cbook.py", line 416, in __call__
    return mtd(*args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\widgets.py", line 229, in _release
    func(event)
  File "ModuleMismatchSimulator.py", line 432, in SetTheShade
    ivp0.shade.insert(0, ivp0.shade[-1])
IndexError: list index out of range