On Fri, Aug 1, 2014 at 3:23 PM, Charles R Harris <charlesr.harris@gmail.com> wrote:
On Fri, Aug 1, 2014 at 7:59 AM, Robert Kern <robert.kern@gmail.com> wrote:
On Fri, Aug 1, 2014 at 2:54 PM, Charles R Harris <charlesr.harris@gmail.com> wrote:
Importing inspect looks to take about 500 ns on my machine. Although It is hard to be exact, as I suspect the file is sitting in the file cache. Would probably be slower with hard disks.
Or where site-packages is on NFS.
But as the inspect module is already imported elsewhere, the python interpreter should also have it cached.
Not on a normal import it's not.
import numpy import sys sys.modules['inspect'] Traceback (most recent call last): File "<stdin>", line 1, in <module> KeyError: 'inspect'
There are two lazy imports of inspect.
Sure, but get_object_signature() is called unlazily when numpy is imported.
You should feel free to remove whatever parts of `_inspect` are not being used and to move the parts that are closer to where they are used if you feel compelled to. Please do not replace the current uses of `_inspect` with `inspect`.
It is used in just one place.
So? That one place is always called whenever numpy is imported.
Is importing inspect so much slower than all the other imports we do?
Yeah, it's pretty bad. -- Robert Kern