Re: [Pytables-users] Signed / Unsigned 32bit vs 64bit

2010-01-04 Thread David Fokkema
Hi Francesc, On Thu, 2009-12-31 at 13:17 +0100, Francesc Alted wrote: > Hi David, > > Yes, this is mostly a Python issue in 32-bit platforms. Look at this: > > >>> import array # The native array Python module > >>> b = array.array('i') > >>> b.append(1) > >>> b.append(1L) > >>> b.append(2**32

Re: [Pytables-users] Signed / Unsigned 32bit vs 64bit

2009-12-31 Thread Francesc Alted
Hi David, Yes, this is mostly a Python issue in 32-bit platforms. Look at this: >>> import array # The native array Python module >>> b = array.array('i') >>> b.append(1) >>> b.append(1L) >>> b.append(2**32-999) Traceback (most recent call last): File "", line 1, in ? OverflowError: long int

[Pytables-users] Signed / Unsigned 32bit vs 64bit

2009-12-29 Thread David Fokkema
Hi list, PyTables 2.1.2 with HDF5 1.6.6 and both NumPy 1.3.0 and 1.4.0 on 32-bit vs PyTables 2.1.2 with HDF5 1.8.3 and NumPy 1.4.0rc1 on 64-bit I have lots of clients interpreting detector data and sending pickled objects over http to a server, which uses PyTables to store it (yes, I'm very happy