Numpy slicing

[snan...@shilpasys.com]

Traceback (most recent call last):

  File "E:\SagarPython\machine_learining.py", line 88, in <module>

    ngen = num_generations, verbose = False)

  File "C:\Users\snang\AppData\Local\Programs\Python\Python35\lib\site-packages\deap\algorithms.py", line 151, in eaSimple

    for ind, fit in zip(invalid_ind, fitnesses):

  File "E:\SagarPython\machine_learining.py", line 50, in train_evaluate

    X,Y = prepare_dataset(train_data,window_size)

  File "E:\SagarPython\machine_learining.py", line 31, in prepare_dataset

    X = np.vstack([X,data[i:(i + window_size),0]])

  File "C:\Users\snang\AppData\Local\Programs\Python\Python35\lib\site-packages\pandas-0.21.0-py3.5-win-amd64.egg\pandas\core\frame.py", line 2139, in __getitem__

    return self._getitem_column(key)

  File "C:\Users\snang\AppData\Local\Programs\Python\Python35\lib\site-packages\pandas-0.21.0-py3.5-win-amd64.egg\pandas\core\frame.py", line 2146, in _getitem_column

    return self._get_item_cache(key)

  File "C:\Users\snang\AppData\Local\Programs\Python\Python35\lib\site-packages\pandas-0.21.0-py3.5-win-amd64.egg\pandas\core\generic.py", line 1840, in _get_item_cache

    res = cache.get(item)

TypeError: unhashable type: 'slice'