Traceback (most recent call last):

 "/usr/lib/python2.6/site-packages/nose/loader.py", line 364, in loadTestsFromName
addr.filename, addr.module)

 "/usr/lib/python2.6/site-packages/nose/importer.py", line 39, in importFromPath
return self.importFromDir(dir_path, fqname)

 "/usr/lib/python2.6/site-packages/nose/importer.py", line 84, in importFromDir
mod = load_module(part_fqname, fh, filename, desc)

 "/usr/local/scikit-learn-master/sklearn/tests/test_grid_search.py", line 16, in <module>
from sklearn.utils.testing import assert_equal

 "/usr/local/scikit-learn-master/sklearn/utils/__init__.py", line 11, in <module>
from .validation import (as_float_array,

 "/usr/local/scikit-learn-master/sklearn/utils/validation.py", line 18, in <module>
FLOAT_DTYPES = (np.float64, np.float32, np.float16)AttributeError: 'module' object has no attribute 'float16'
ERROR (theano.gof.opt): Traceback (most recent call last):

 "/usr/local/lib/python3.4/dist-packages/theano/gof/opt.py", line 1787, in process_node
replacements = lopt.transform(node)

 "/usr/local/lib/python3.4/dist-packages/theano/gof/opt.py", line 1238, in transform
repl = opt.transform(node)

 "/usr/local/lib/python3.4/dist-packages/theano/sandbox/cuda/dnn.py", line 2108, in local_conv_dnn
direction_hint=direction_hint)

 "/usr/local/lib/python3.4/dist-packages/theano/sandbox/cuda/dnn.py", line 1153, in dnn_conv
desc_op.subsample)

 "/usr/local/lib/python3.4/dist-packages/theano/sandbox/cuda/dnn.py", line 557, in get_out_shape
subsample)

 "/usr/local/lib/python3.4/dist-packages/theano/tensor/nnet/abstract_conv2d.py", line 46, in get_conv_output_shape
bsize, imshp = image_shape[0], list(image_shape[2:])

 "/usr/local/lib/python3.4/dist-packages/theano/tensor/var.py", line 545, in __iter__
for i in xrange(theano.tensor.basic.get_vector_length(self)):

 "/usr/local/lib/python3.4/dist-packages/theano/tensor/basic.py", line 4262, in get_vector_length
raise ValueError("length not known: %s" % msg)ValueError: length not known: Subtensor{int64::} [id A] '' 