[SciPy-User] SciPy pip and PyPi

David Cournapeau cournape@gmail....
Fri Nov 12 16:38:21 CST 2010


On Fri, Nov 12, 2010 at 12:40 AM, Martin Galpin <galpin@gmail.com> wrote:
> Dear all,
> I am attempting to install SciPy using pip and pypi into a virtualenv.
> However, because the SciPy egg does not list NumPy as as a dependency, the
> process cannot be automated using a pip requirements file (the install fails
> because there is no guarantee of the order pip installs packages and when
> installing SciPy, NumPy might not be installed).
> I have verified this is the case on both OS X and Ubuntu 10.10.
> Can anybody suggest an alternative?

That's not possible I am afraid. Those tools are pretty limited, and
cannot express complex dependencies: numpy is a *build* dependency of
scipy, and scipy setup.py needs numpy to run at all. Neither
setuptools nor pip support this concept,

cheers,

David


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