TypeErrors with numpy 1.10

Nobody has claimed this yet.

``` python
======================================================================
ERROR: test_mean_dtype (distarray.globalapi.tests.test_distarray.TestReduceMethods)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/travis/build/enthought/distarray/distarray/globalapi/tests/test_distarray.py", line 817, in test_mean_dtype
da_mean = self.darr.mean(axis=0, dtype=int)
File "/home/travis/build/enthought/distarray/distarray/globalapi/distarray.py", line 387, in mean
return self._reduce('mean_reducer', axis, dtype, out)
File "/home/travis/build/enthought/distarray/distarray/globalapi/distarray.py", line 374, in _reduce
targets=self.targets)[0]
File "/home/travis/build/enthought/distarray/distarray/globalapi/context.py", line 819, in apply
return self.view.apply_sync(func_wrapper, *wrapped_args)
File "", line 2, in apply_sync
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 63, in spin_after
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 234, in apply_sync
return self._really_apply(f, args, kwargs, block=True)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 54, in sync_results
ret = f(self, *args, **kwargs)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 39, in save_ids
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 571, in _really_apply
return ar.get()
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 104, in get
raise self._exception
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 139, in wait
results = error.collect_exceptions(results, self._fname)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 233, in collect_exceptions
raise e
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 231, in collect_exceptions
raise CompositeError(msg, elist)
ipyparallel.error.CompositeError: one or more exceptions from call to method: func_wrapper
[0:apply]: TypeError: ufunc 'true_divide' output (typecode 'd') could not be coerced to provided output parameter (typecode 'l') according to the casting rule ''same_kind''
[1:apply]: TypeError: ufunc 'true_divide' output (typecode 'd') could not be coerced to provided output parameter (typecode 'l') according to the casting rule ''same_kind''
======================================================================
ERROR: test_std_dtype (distarray.globalapi.tests.test_distarray.TestReduceMethods)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/travis/build/enthought/distarray/distarray/globalapi/tests/test_distarray.py", line 855, in test_std_dtype
da_std = self.darr.std(dtype=int)
File "/home/travis/build/enthought/distarray/distarray/globalapi/distarray.py", line 395, in std
return self._reduce('std_reducer', axis, dtype, out)
File "/home/travis/build/enthought/distarray/distarray/globalapi/distarray.py", line 374, in _reduce
targets=self.targets)[0]
File "/home/travis/build/enthought/distarray/distarray/globalapi/context.py", line 819, in apply
return self.view.apply_sync(func_wrapper, *wrapped_args)
File "", line 2, in apply_sync
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 63, in spin_after
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 234, in apply_sync
return self._really_apply(f, args, kwargs, block=True)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 54, in sync_results
ret = f(self, *args, **kwargs)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 39, in save_ids
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 571, in _really_apply
return ar.get()
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 104, in get
raise self._exception
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 139, in wait
results = error.collect_exceptions(results, self._fname)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 233, in collect_exceptions
raise e
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 231, in collect_exceptions
raise CompositeError(msg, elist)
ipyparallel.error.CompositeError: one or more exceptions from call to method: func_wrapper
[0:apply]: TypeError: ufunc 'true_divide' output (typecode 'd') could not be coerced to provided output parameter (typecode 'l') according to the casting rule ''same_kind''
======================================================================
ERROR: test_var_dtype (distarray.globalapi.tests.test_distarray.TestReduceMethods)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/travis/build/enthought/distarray/distarray/globalapi/tests/test_distarray.py", line 845, in test_var_dtype
da_var = self.darr.var(dtype=int)
File "/home/travis/build/enthought/distarray/distarray/globalapi/distarray.py", line 391, in var
return self._reduce('var_reducer', axis, dtype, out)
File "/home/travis/build/enthought/distarray/distarray/globalapi/distarray.py", line 374, in _reduce
targets=self.targets)[0]
File "/home/travis/build/enthought/distarray/distarray/globalapi/context.py", line 819, in apply
return self.view.apply_sync(func_wrapper, *wrapped_args)
File "", line 2, in apply_sync
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 63, in spin_after
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 234, in apply_sync
return self._really_apply(f, args, kwargs, block=True)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 54, in sync_results
ret = f(self, *args, **kwargs)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 39, in save_ids
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 571, in _really_apply
return ar.get()
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 104, in get
raise self._exception
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 139, in wait
results = error.collect_exceptions(results, self._fname)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 233, in collect_exceptions
raise e
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 231, in collect_exceptions
raise CompositeError(msg, elist)
ipyparallel.error.CompositeError: one or more exceptions from call to method: func_wrapper
[0:apply]: TypeError: ufunc 'true_divide' output (typecode 'd') could not be coerced to provided output parameter (typecode 'l') according to the casting rule ''same_kind''
======================================================================
ERROR: test_save_load_with_filenames (distarray.globalapi.tests.test_distributed_io.TestDnpyFileIO)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/travis/build/enthought/distarray/distarray/globalapi/tests/test_distributed_io.py", line 52, in test_save_load_with_filenames
db = self.context.load_dnpy(self.output_paths)
File "/home/travis/build/enthought/distarray/distarray/globalapi/context.py", line 331, in load_dnpy
da_key = self.apply(func, (self.comm, name), targets=self.targets)
File "/home/travis/build/enthought/distarray/distarray/globalapi/context.py", line 819, in apply
return self.view.apply_sync(func_wrapper, *wrapped_args)
File "", line 2, in apply_sync
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 63, in spin_after
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 234, in apply_sync
return self._really_apply(f, args, kwargs, block=True)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 54, in sync_results
ret = f(self, *args, **kwargs)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 39, in save_ids
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 571, in _really_apply
return ar.get()
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 104, in get
raise self._exception
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 139, in wait
results = error.collect_exceptions(results, self._fname)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 233, in collect_exceptions
raise e
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 231, in collect_exceptions
raise CompositeError(msg, elist)
ipyparallel.error.CompositeError: one or more exceptions from call to method: func_wrapper
[0:apply]: ValueError: malformed node or string: b"{'__version__': '0.10.0', 'dim_data': ({'proc_grid_rank': 0, 'proc_grid_size': 4, 'size': 100, 'stop': 25, 'dist_type': 'b', 'start': 0},), } \n"
[1:apply]: ValueError: malformed node or string: b"{'__version__': '0.10.0', 'dim_data': ({'proc_grid_rank': 1, 'stop': 50, 'dist_type': 'b', 'proc_grid_size': 4, 'start': 25, 'size': 100},), } \n"
[2:apply]: ValueError: malformed node or string: b"{'__version__': '0.10.0', 'dim_data': ({'stop': 75, 'size': 100, 'dist_type': 'b', 'start': 50, 'proc_grid_rank': 2, 'proc_grid_size': 4},), } \n"
[3:apply]: ValueError: malformed node or string: b"{'__version__': '0.10.0', 'dim_data': ({'proc_grid_size': 4, 'size': 100, 'start': 75, 'dist_type': 'b', 'proc_grid_rank': 3, 'stop': 100},), } \n"
======================================================================
ERROR: test_save_load_with_prefix (distarray.globalapi.tests.test_distributed_io.TestDnpyFileIO)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/travis/build/enthought/distarray/distarray/globalapi/tests/test_distributed_io.py", line 64, in test_save_load_with_prefix
db = self.context.load_dnpy(output_path)
File "/home/travis/build/enthought/distarray/distarray/globalapi/context.py", line 331, in load_dnpy
da_key = self.apply(func, (self.comm, name), targets=self.targets)
File "/home/travis/build/enthought/distarray/distarray/globalapi/context.py", line 819, in apply
return self.view.apply_sync(func_wrapper, *wrapped_args)
File "", line 2, in apply_sync
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 63, in spin_after
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 234, in apply_sync
return self._really_apply(f, args, kwargs, block=True)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 54, in sync_results
ret = f(self, *args, **kwargs)
File "", line 2, in _really_apply
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 39, in save_ids
ret = f(self, *args, **kwargs)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/view.py", line 571, in _really_apply
return ar.get()
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 104, in get
raise self._exception
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/client/asyncresult.py", line 139, in wait
results = error.collect_exceptions(results, self._fname)
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 233, in collect_exceptions
raise e
File "/home/travis/miniconda/envs/distarray-env/lib/python3.4/site-packages/ipyparallel/error.py", line 231, in collect_exceptions
raise CompositeError(msg, elist)
ipyparallel.error.CompositeError: one or more exceptions from call to method: func_wrapper
[0:apply]: ValueError: malformed node or string: b"{'__version__': '0.10.0', 'dim_data': ({'proc_grid_rank': 0, 'proc_grid_size': 4, 'size': 100, 'stop': 25, 'dist_type': 'b', 'start': 0},), } \n"
[1:apply]: ValueError: malformed node or string: b"{'__version__': '0.10.0', 'dim_data': ({'proc_grid_rank': 1, 'stop': 50, 'dist_type': 'b', 'proc_grid_size': 4, 'start': 25, 'size': 100},), } \n"
[2:apply]: ValueError: malformed node or string: b"{'__version__': '0.10.0', 'dim_data': ({'stop': 75, 'size': 100, 'dist_type': 'b', 'start': 50, 'proc_grid_rank': 2, 'proc_grid_size': 4},), } \n"
[3:apply]: ValueError: malformed node or string: b"{'__version__': '0.10.0', 'dim_data': ({'proc_grid_size': 4, 'size': 100, 'start': 75, 'dist_type': 'b', 'proc_grid_rank': 3, 'stop': 100},), } \n"
```

Reproduce the failures in distarray/globalapi/tests/test_distarray.py, especially test_mean_dtype, test_var_dtype, and test_std_dtype, and in distarray/globalapi/tests/test_distributed_io.py for test_save_load_with_filenames. Trace the calls through distarray/globalapi/distarray.py and distarray/globalapi/context.py, then verify that these tests pass with NumPy 1.10 and that filename-based loading works.

Written by the indexing model from the issue text.