[SciPy-user] suggest to change PREREQUISITES of scipy clearly

David Cournapeau cournape@gmail....
Thu Nov 13 02:59:23 CST 2008

On Thu, Nov 13, 2008 at 3:53 PM, oyster <lepto.python@gmail.com> wrote:
> for example
> in scipy version = '0.5.1', the 'PREREQUISITES' section of INSTALL.txt
> says 'NumPy__ 1.0b1 or newer', but when I install numpy
> version='1.0.4', and run scipy, I get
> [code]
> h:\sap-24\bin\lib\site-packages\scipy\misc\__init__.py:25:
> DeprecationWarning: ScipyTest is now called NumpyTest; please update
> your code
>  test = ScipyTest().test
> RuntimeError: module compiled against version 1000002 of C-API but
> this version of numpy is 1000009
> [/code]

There are two problems:
  - scipy and numpy must be compatible feature-wise (that is a version
S of scipy requires at least a version of N of numpy), that is API
compatibility. If S and N are API compatible, you should be able to
build and use them together. That's what is mentioned in the
  - ABI compatibility, that is if you build scipy against a given
version of numpy N1, will it work with a version N2 without
recompilation; that's what you see in your case. API compatibility is
necessary but not sufficient for ABI compatibility.

For some time, I think we just raise the error you are seeing when the
version did not match exactly. But someone (Stefan) worked in this,
and maybe this won't happen for future versions.


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