[Numpy-discussion] "import numpy" is slow

David Huard david.huard@gmail....
Thu Jul 31 12:56:28 CDT 2008


On Thu, Jul 31, 2008 at 1:12 PM, Christopher Barker
<Chris.Barker@noaa.gov>wrote:

> David Cournapeau wrote:
> > Christopher Barker wrote:
> >> On my OS-X box (10.4.11, python2.5, numpy '1.1.1rc2'), it takes about 7
> >> seconds to import numpy!
> >
> > Hot or cold ? If hot, there is something horribly wrong with your setup.
>
> hot -- it takes about 10 cold.
>
> I've been wondering about that.
>
> time python -c "import numpy"
>
> real    0m8.383s
> user    0m0.320s
> sys     0m7.805s
>
> and similar results if run multiple times in a row.
>
> Any idea what could be wrong? I have no clue where to start, though I
> suppose a complete clean out and re-install of python comes to mind.
>

Is only 'import numpy' slow, or other packages import slowly too ?
Are there remote directories in your pythonpath ?
Do you have old `eggs` in the site-packages directory that point to remote
directories (installed with setuptools developp) ?
Try cleaning the site-packages directory. That did the trick for me once.

David


> oh, and this is a dual G5 PPC (which should have a faster disk than your
> Macbook)
>
>
> -Chris
>
>
> --
> Christopher Barker, Ph.D.
> Oceanographer
>
> Emergency Response Division
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>
> Chris.Barker@noaa.gov
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