Thanks for the answer! I don't know if I'm missing something, but initializing 
arrays with dtype=object seems to fail. I'm using PyPy 2.5.1 on OS X 10.10 and 
Numpy from the PyPy's Numpy fork. I'm assuming the "master [MAIN BRANCH]" is 
the same as the "default branch".

Initializing the arrays fails like this:

>>>> import numpy
>>>> numpy.zeros(2, dtype=object)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NotImplementedError: cannot create dtype with type 'object'

Numpy was installed like this:
git clone https://bitbucket.org/pypy/numpy.git;
cd numpy; pypy setup.py install



> On 22 May 2015, at 02:22, Ronan Lamy <ronan.l...@gmail.com> wrote:
> 
> Le 21/05/15 09:40, Antti Mäkinen a écrit :
>> Is there any estimate on when NumPyPy will support datetime.date objects
>> in arrays?
> 
> Well, the object dtype is already supported in the default branch, so you can 
> put datetime.date objects in arrays. If you were thinking of the 
> np.datetime64 and np.timedelta64 dtypes, they aren't supported yet, and we're 
> not planning on adding them in the immediate future unless there's a 
> compelling use case.
> 
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