[SciPy-dev] Now new svn of numpy is ready

[Arnd Baecker]

On Wed, 4 Jan 2006, Travis Oliphant wrote:

>
> My previous post was pre-mature as the fixed numpy was only in the numpy
> branch.     I have now finished *merging* the changes from the numpy
> branch into the trunk so
>
> svn co http://svn.scipy.org/svn/numpy/trunk numpy
>
> should not only check out something that compiles and installs *but
> also* intalls into the numpy namespace
>
> so that running in python
>
>  >>> import numpy
>  >>> numpy.test(1,1)
>
> should work.

First many thanks for your hard work! Looks very good,
just a minor problem:

On the Opteron I get:

======================================================================
ERROR: check_basic (numpy.core.defmatrix.test_defmatrix.test_algebra)
----------------------------------------------------------------------
Traceback (most recent call last):
  File
"/home/abaecker/BUILDS3/Build_113/inst_numpy/lib/python2.4/site-packages/numpy/core/tests/test_defmatrix.py",
l                                              ine 108, in check_basic
    Ainv = linalg.inv(A)
  File "/scr/python/lib/python2.4/site-packages/scipy/linalg/basic.py",
line 176, in inv
    a1 = asarray_chkfinite(a)
  File
"/scr/python/lib/python2.4/site-packages/scipy_base/function_base.py",
line 27, in asarray_chkfinite
    if not all(_nx.isfinite(x)):
TypeError: function not supported for these types, and can't coerce to
supported types

======================================================================
ERROR: check_basic (numpy.core.defmatrix.test_defmatrix.test_properties)
----------------------------------------------------------------------
Traceback (most recent call last):
  File
"/home/abaecker/BUILDS3/Build_113/inst_numpy/lib/python2.4/site-packages/numpy/core/tests/test_defmatrix.py",
l                                              ine 34, in check_basic
    assert allclose(linalg.inv(A), mA.I)
  File "/scr/python/lib/python2.4/site-packages/scipy/linalg/basic.py",
line 176, in inv
    a1 = asarray_chkfinite(a)
  File
"/scr/python/lib/python2.4/site-packages/scipy_base/function_base.py",
line 27, in asarray_chkfinite
    if not all(_nx.isfinite(x)):
TypeError: function not supported for these types, and can't coerce to
supported types

----------------------------------------------------------------------
Ran 176 tests in 0.206s

Clearly, it picks some previously installed scipy_base
(from a separate, old install).
Explicitely:

In [1]: from numpy import *

In [2]: A = array([[1., 2.],[3., 4.]])

In [3]: type(A)
Out[3]: <type 'numpy.ndarray'>

In [4]: A.itemsize
Out[4]: 8

In [5]: A.dtype()
Out[5]: 0.0

In [6]: A.dtypestr
Out[6]: '<f8'

In [7]: linalg.inv(A)
---------------------------------------------------------------------------
exceptions.TypeError                                 Traceback (most
recent call last)

/home/abaecker/BUILDS3/<console>

/scr/python/lib/python2.4/site-packages/scipy/linalg/basic.py in inv(a,
overwrite_a)
    174     Return inverse of square matrix a.
    175     """
--> 176     a1 = asarray_chkfinite(a)
    177     if len(a1.shape) != 2 or a1.shape[0] != a1.shape[1]:
    178         raise ValueError, 'expected square matrix'

/scr/python/lib/python2.4/site-packages/scipy_base/function_base.py in
asarray_chkfinite(x)
     25     """
     26     x = asarray(x)
---> 27     if not all(_nx.isfinite(x)):
     28         raise ValueError, "Array must not contain infs or nans."
     29     return x

TypeError: function not supported for these types, and can't coerce to
supported types

In [8]: import numpy

In [9]: numpy.__version__
Out[9]: '0.9.2.1812'

Many thanks, Arnd