DocvecsArray getitem int64 bug

[knownact]

def __getitem__(self, index):
    """
    Accept a single key (int or string tag) or list of keys as input.

    If a single string or int, return designated tag's vector
    representation, as a 1D numpy array.

    If a list, return designated tags' vector representations as a
    2D numpy array: #tags x #vector_size.
    """
    if isinstance(index, string_types + (int,)):
        return self.doctag_syn0[self._int_index(index)]


    return vstack([self[i] for i in index])

should be

    if isinstance(index, integer):
        return self.doctag_syn0[self._int_index(index)]

[gojomo]

Why? Do you have an example where the chabge works better? Does the change still support indexed-lookup of string doctags?

[knownact]

it is because index here may be the numpy.int64 type, and the code here will hurt the indexed-lookup of string doctag, so maybe add a addition compare is ok, like:

from numpy import integer

if isinstance(index, string_types + (int,)) or isinstance(index, string_types + (integer,)) :
    return self.doctag_syn0[self._int_index(index)]

[gojomo]

I see. A PR with a test for the new case this enables, & the fix, would be welcome.