Re: [Numpy-discussion] Licensing question
On Wed, Aug 8, 2012 at 12:55 AM, Nathaniel Smith n...@pobox.com wrote: On Mon, Aug 6, 2012 at 8:31 PM, Robert Kern robert.k...@gmail.com wrote: Those are not the original Fortran sources. The original Fortran sources are in the public domain as work done by a US federal employee. http://www.netlib.org/fftpack/ Never trust the license of any code on John Burkardt's site. Track it down to the original sources. Taken together, what those websites seem to be claiming is that you have a choice of buggy BSD code or fixed GPL code? I assume someone has already taken the appropriate measures for numpy, but it seems like an unfortunate situation... If the code on John Burkardt website is based on the netlib codebase, he is not entitled to make it GPL unless he is the sole copyright holder of the original code. I think the 'real' solution is to have a separate package linking to FFTW for people with 'advanced' needs for FFT. None of the other library I have looked at so far are usable, fast and precise enough when you go far from the simple case of double precision and 'well factored' size. regards, David ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Licensing question
On Wed, Aug 8, 2012 at 10:34 AM, David Cournapeau courn...@gmail.com wrote: On Wed, Aug 8, 2012 at 12:55 AM, Nathaniel Smith n...@pobox.com wrote: On Mon, Aug 6, 2012 at 8:31 PM, Robert Kern robert.k...@gmail.com wrote: Those are not the original Fortran sources. The original Fortran sources are in the public domain as work done by a US federal employee. http://www.netlib.org/fftpack/ Never trust the license of any code on John Burkardt's site. Track it down to the original sources. Taken together, what those websites seem to be claiming is that you have a choice of buggy BSD code or fixed GPL code? I assume someone has already taken the appropriate measures for numpy, but it seems like an unfortunate situation... If the code on John Burkardt website is based on the netlib codebase, he is not entitled to make it GPL unless he is the sole copyright holder of the original code. He can certainly incorporate the public domain code and rerelease it under whatever restrictions he likes, especially if he adds to it, which appears to be the case. The original sources are legitimately public domain, not just released under a liberal copyright license. He can't remove the original code from the public domain, but that's not what he claims to have done. I think the 'real' solution is to have a separate package linking to FFTW for people with 'advanced' needs for FFT. None of the other library I have looked at so far are usable, fast and precise enough when you go far from the simple case of double precision and 'well factored' size. http://pypi.python.org/pypi/pyFFTW -- Robert Kern ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Licensing question
On Wed, Aug 8, 2012 at 10:53 AM, Robert Kern robert.k...@gmail.com wrote: On Wed, Aug 8, 2012 at 10:34 AM, David Cournapeau courn...@gmail.com wrote: On Wed, Aug 8, 2012 at 12:55 AM, Nathaniel Smith n...@pobox.com wrote: On Mon, Aug 6, 2012 at 8:31 PM, Robert Kern robert.k...@gmail.com wrote: Those are not the original Fortran sources. The original Fortran sources are in the public domain as work done by a US federal employee. http://www.netlib.org/fftpack/ Never trust the license of any code on John Burkardt's site. Track it down to the original sources. Taken together, what those websites seem to be claiming is that you have a choice of buggy BSD code or fixed GPL code? I assume someone has already taken the appropriate measures for numpy, but it seems like an unfortunate situation... If the code on John Burkardt website is based on the netlib codebase, he is not entitled to make it GPL unless he is the sole copyright holder of the original code. He can certainly incorporate the public domain code and rerelease it under whatever restrictions he likes, especially if he adds to it, which appears to be the case. The original sources are legitimately public domain, not just released under a liberal copyright license. He can't remove the original code from the public domain, but that's not what he claims to have done. I think the 'real' solution is to have a separate package linking to FFTW for people with 'advanced' needs for FFT. None of the other library I have looked at so far are usable, fast and precise enough when you go far from the simple case of double precision and 'well factored' size. http://pypi.python.org/pypi/pyFFTW Nice, I am starting to get out of touch with too many packages... Would be nice to add DCT and DST support to it. David ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Licensing question
Nice, I am starting to get out of touch with too many packages... Would be nice to add DCT and DST support to it. FWIW, the DCT has been in scipy.fftpack for a while and DST was just added. ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Licensing question
But the Fortran FFTPACK is GPL, or has the licence been changed? http://people.sc.fsu.edu/~jburkardt/f77_src/fftpack5.1/fftpack5.1.html Sturla Sendt fra min iPad Den 3. aug. 2012 kl. 07:52 skrev Travis Oliphant tra...@continuum.io: This should be completely fine.The fftpack.h file indicates that fftpack code came from Tela originally anyway and was translated from the Fortran code FFTPACK. Good luck with your project. -Travis On Aug 2, 2012, at 3:44 PM, Damon McDougall wrote: Hi, I have a question about the licence for NumPy's codebase. I am currently writing a library and I'd like to release under some BSD-type licence. Unfortunately, my choice to link against MIT's FFTW library (released under the GPL) means that, in its current state, this is not possible. I'm an avid NumPy user and thought to myself that, since NumPy's licence is BSD, I'd be able to use some of the source code (with due credit, of course) instead of FFTW. Is this possible? I mean, can I redistribute *PART* of NumPy's codebase? Namely, the fftpack.c file? I was under the impression that I could only redistribute BSD source code as a whole and then I read the licence more carefully and it states that I can modify the source to suit my needs. I consider 'redistributing a single file and ignoring the other files' as a 'modification' under the BSD definition, but maybe I'm thinking too wishfully here. Any information on this matter would be greatly appreciated since I am a total code licence noob. Thank you. P.S. Yes, I know I could just release under the GPL, but I don't want to turn people off of packaging my work into a useful product licensed under BSD, or even make money from it. -- Damon McDougall http://damon-is-a-geek.com B2.39 Mathematics Institute University of Warwick Coventry West Midlands CV4 7AL United Kingdom ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Licensing question
Those are not the original Fortran sources. The original Fortran sources are in the public domain as work done by a US federal employee. http://www.netlib.org/fftpack/ Never trust the license of any code on John Burkardt's site. Track it down to the original sources. On Monday, August 6, 2012, Sturla Molden wrote: But the Fortran FFTPACK is GPL, or has the licence been changed? http://people.sc.fsu.edu/~jburkardt/f77_src/fftpack5.1/fftpack5.1.html Sturla Sendt fra min iPad Den 3. aug. 2012 kl. 07:52 skrev Travis Oliphant tra...@continuum.iojavascript:; : This should be completely fine.The fftpack.h file indicates that fftpack code came from Tela originally anyway and was translated from the Fortran code FFTPACK. Good luck with your project. -Travis On Aug 2, 2012, at 3:44 PM, Damon McDougall wrote: Hi, I have a question about the licence for NumPy's codebase. I am currently writing a library and I'd like to release under some BSD-type licence. Unfortunately, my choice to link against MIT's FFTW library (released under the GPL) means that, in its current state, this is not possible. I'm an avid NumPy user and thought to myself that, since NumPy's licence is BSD, I'd be able to use some of the source code (with due credit, of course) instead of FFTW. Is this possible? I mean, can I redistribute *PART* of NumPy's codebase? Namely, the fftpack.c file? I was under the impression that I could only redistribute BSD source code as a whole and then I read the licence more carefully and it states that I can modify the source to suit my needs. I consider 'redistributing a single file and ignoring the other files' as a 'modification' under the BSD definition, but maybe I'm thinking too wishfully here. Any information on this matter would be greatly appreciated since I am a total code licence noob. Thank you. P.S. Yes, I know I could just release under the GPL, but I don't want to turn people off of packaging my work into a useful product licensed under BSD, or even make money from it. -- Damon McDougall http://damon-is-a-geek.com B2.39 Mathematics Institute University of Warwick Coventry West Midlands CV4 7AL United Kingdom ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org javascript:; http://mail.scipy.org/mailman/listinfo/numpy-discussion ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org javascript:; http://mail.scipy.org/mailman/listinfo/numpy-discussion ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org javascript:; http://mail.scipy.org/mailman/listinfo/numpy-discussion -- Robert Kern ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Licensing question
On 08/02/2012 10:44 PM, Damon McDougall wrote: Hi, I have a question about the licence for NumPy's codebase. I am currently writing a library and I'd like to release under some BSD-type licence. Unfortunately, my choice to link against MIT's FFTW library (released under the GPL) means that, in its current state, this is not possible. I'm an avid NumPy user and thought to myself that, since NumPy's licence is BSD, I'd be able to use some of the source code (with due credit, of course) instead of FFTW. Is this possible? I mean, can I redistribute *PART* of NumPy's codebase? Namely, the fftpack.c file? I was under the impression that I could only redistribute BSD source code as a whole and then I read the licence more carefully and it states that I can modify the source to suit my needs. I consider 'redistributing a single file and ignoring the other files' as a 'modification' under the BSD definition, but maybe I'm thinking too wishfully here. Any information on this matter would be greatly appreciated since I am a total code licence noob. Thank you. P.S. Yes, I know I could just release under the GPL, but I don't want to turn people off of packaging my work into a useful product licensed under BSD, or even make money from it. Not related to licensing, but here's another port of FFTPACK to C by Martin Reinecke, licensed under BSD. The README has the links to the original Fortran sources that this is based on. https://github.com/dagss/libfftpack Dag ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Licensing question
On Thu, Aug 02, 2012 at 09:44:53PM +0100, Damon McDougall wrote: I have a question about the licence for NumPy's codebase. I am currently writing a library and I'd like to release under some BSD-type licence. Unfortunately, my choice to link against MIT's FFTW library (released under the GPL) means that, in its current state, this is not possible. I'm an avid NumPy user and thought to myself that, since NumPy's licence is BSD, I'd be able to use some of the source code (with due credit, of course) instead of FFTW. Is this possible? I mean, can I redistribute *PART* of NumPy's codebase? Namely, the fftpack.c file? As far as I know, yes. You must give credit to the original source, but that's it. Gael ps: IANAL :) ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] Licensing question
This should be completely fine.The fftpack.h file indicates that fftpack code came from Tela originally anyway and was translated from the Fortran code FFTPACK. Good luck with your project. -Travis On Aug 2, 2012, at 3:44 PM, Damon McDougall wrote: Hi, I have a question about the licence for NumPy's codebase. I am currently writing a library and I'd like to release under some BSD-type licence. Unfortunately, my choice to link against MIT's FFTW library (released under the GPL) means that, in its current state, this is not possible. I'm an avid NumPy user and thought to myself that, since NumPy's licence is BSD, I'd be able to use some of the source code (with due credit, of course) instead of FFTW. Is this possible? I mean, can I redistribute *PART* of NumPy's codebase? Namely, the fftpack.c file? I was under the impression that I could only redistribute BSD source code as a whole and then I read the licence more carefully and it states that I can modify the source to suit my needs. I consider 'redistributing a single file and ignoring the other files' as a 'modification' under the BSD definition, but maybe I'm thinking too wishfully here. Any information on this matter would be greatly appreciated since I am a total code licence noob. Thank you. P.S. Yes, I know I could just release under the GPL, but I don't want to turn people off of packaging my work into a useful product licensed under BSD, or even make money from it. -- Damon McDougall http://damon-is-a-geek.com B2.39 Mathematics Institute University of Warwick Coventry West Midlands CV4 7AL United Kingdom ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
