What is the difference between 32 and 64 bit Python on Windows 7 64 bit?

[Sturla Molden]

On 12/05/14 15:42, Sturla Molden wrote:

> - A one-dimensional NumPy array with dtype np.float64 can keep 16 GB of
> data before a 32 bit index is too small and Python starts to use long. A
> two-dimensional NumPy array with dtype np.float64 can keep 256 GB of
> data before a 32 bit index is too small.


Oops, the latter should be 34359738336 GB (that is, 32767 pentabytes) :)

Sturla