Re: [Numpy-discussion] dot function or dot notation, matrices, arrays?

2009-12-22 Thread Dag Sverre Seljebotn
Christopher Barker wrote: Dag Sverre Seljebotn wrote: This is readily done -- there is no computational portion except for what is in NumPy/Scipy or scikits, and I intend for it to remain that way. It's just another interface, really. (What kind of computations were you thinking about?)

[Numpy-discussion] ANN: PyTables 2.2b2 released

2009-12-22 Thread Francesc Alted
=== Announcing PyTables 2.2b2 === PyTables is a library for managing hierarchical datasets and designed to efficiently cope with extremely large amounts of data with support for full 64-bit file addressing. PyTables runs on top of the HDF5 library

[Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread David Cournapeau
Hi, I have just released the 2nd release candidate for numpy 1.4.0, which fixes a few critical bugs founds since the RC1. Tarballs and binary installers for numpy/scipy may be found on https://sourceforge.net/projects/numpy. cheers, David ___

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread Bruce Southey
On 12/22/2009 09:05 AM, David Cournapeau wrote: Hi, I have just released the 2nd release candidate for numpy 1.4.0, which fixes a few critical bugs founds since the RC1. Tarballs and binary installers for numpy/scipy may be found on https://sourceforge.net/projects/numpy. cheers, David

Re: [Numpy-discussion] Proposal for matrix_rank function in numpy

2009-12-22 Thread Matthew Brett
Hi, I'm happy to write the doctests as tests.   My feeling is there is no objection to this function at the moment, so it would be reasonable, unless I hear otherwise, to commit to SVN. Committed - with tests in tests_linalg.py - in revision 8029 Cheers, Matthew

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread Gökhan Sever
On Tue, Dec 22, 2009 at 9:05 AM, David Cournapeau courn...@gmail.comwrote: Hi, I have just released the 2nd release candidate for numpy 1.4.0, which fixes a few critical bugs founds since the RC1. Tarballs and binary installers for numpy/scipy may be found on

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread Charles R Harris
On Tue, Dec 22, 2009 at 8:50 AM, Bruce Southey bsout...@gmail.com wrote: On 12/22/2009 09:05 AM, David Cournapeau wrote: Hi, I have just released the 2nd release candidate for numpy 1.4.0, which fixes a few critical bugs founds since the RC1. Tarballs and binary installers for numpy/scipy

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread Pauli Virtanen
ti, 2009-12-22 kello 10:16 -0700, Charles R Harris kirjoitti: [clip: PyOS_ascii_strtod - PyOS_string_to_double] The patch looks ok, but the functions handle errors differently and I wonder if that has been completely audited. It can actually still crash from the same reason:

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread Charles R Harris
On Tue, Dec 22, 2009 at 12:40 PM, Pauli Virtanen p...@iki.fi wrote: ti, 2009-12-22 kello 10:16 -0700, Charles R Harris kirjoitti: [clip: PyOS_ascii_strtod - PyOS_string_to_double] The patch looks ok, but the functions handle errors differently and I wonder if that has been completely

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread Pauli Virtanen
ti, 2009-12-22 kello 14:32 -0700, Charles R Harris kirjoitti: [clip] Could you expand a bit on this? There are several places where PyErr_Occurred are called and I am wondering if there is a problem. In fact, I moved one such check and a segfault went away, which made me suspicious... I think

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread Charles R Harris
On Tue, Dec 22, 2009 at 2:42 PM, Pauli Virtanen p...@iki.fi wrote: ti, 2009-12-22 kello 14:32 -0700, Charles R Harris kirjoitti: [clip] Could you expand a bit on this? There are several places where PyErr_Occurred are called and I am wondering if there is a problem. In fact, I moved one

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread Pauli Virtanen
ti, 2009-12-22 kello 15:28 -0700, Charles R Harris kirjoitti: [clip] But what about the GIL? That's what I'm curious about. Do we need to hold the GIL to check and clear and error? If so, there are other places where this will matter. I was under the impression that each thread had it's own

Re: [Numpy-discussion] dot function or dot notation, matrices, arrays?

2009-12-22 Thread David Goldsmith
On Tue, Dec 22, 2009 at 1:06 AM, Dag Sverre Seljebotn da...@student.matnat.uio.no wrote: OK. As a digression, I think it is easy to get the wrong impression of Sage that it is for symbolics vs. computations. The reality is that the symbolics has been one of the *weaker* aspects of Sage (though

Re: [Numpy-discussion] dot function or dot notation, matrices, arrays?

2009-12-22 Thread Anne Archibald
2009/12/21 David Goldsmith d.l.goldsm...@gmail.com: On Mon, Dec 21, 2009 at 9:57 AM, Christopher Barker chris.bar...@noaa.gov wrote: Dag Sverre Seljebotn wrote: I recently got motivated to get better linear algebra for Python; wonderful! To me that seems like the ideal way to split up code

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread David Cournapeau
On Wed, Dec 23, 2009 at 12:50 AM, Bruce Southey bsout...@gmail.com wrote: This still crashes Python 2.7 with the test_multiarray.TestIO.test_ascii. Could you file a ticket next time ? I could not follow closely the discussion the last week or so, and although I saw the crash, I missed it was

Re: [Numpy-discussion] [ANN] numpy 1.4.0 rc2

2009-12-22 Thread David Cournapeau
On Wed, Dec 23, 2009 at 4:40 AM, Pauli Virtanen p...@iki.fi wrote: I suppose raising an exception requires ownership of GIL. I am curious: how did you know it was related to the GIL ? When I tried debugging the issue, I could not tell whereas this was a problem with python 2.7 or with numpy,

[Numpy-discussion] LA improvements (was: dot function or dot notation, matrices, arrays?)

2009-12-22 Thread David Goldsmith
Starting a new thread for this. On Tue, Dec 22, 2009 at 7:13 PM, Anne Archibald peridot.face...@gmail.com wrote: I think we have one major lacuna: vectorized linear algebra. If I have to solve a whole whack of four-dimensional linear systems, right now I need to either write a python loop and