ffc team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Thu, Feb 01, 2007 at 10:59:05AM +0100, Garth N. Wells wrote:
> 
> 
> Åsmund Ødegård wrote:
> > Wed, 31 Jan skrev Anders Logg:
> >> On Wed, Jan 31, 2007 at 11:11:40PM +0100, Garth N. Wells wrote:
> >>>
> >>> Anders Logg wrote:
> >>>> On Wed, Jan 31, 2007 at 07:13:22PM +0100, Garth N. Wells wrote:
> >>>>> When running ffc under Cygwin, I get the following error:
> >>>>>
> >>>>> Traceback (most recent call last):
> >>>>>   File "/usr/bin/ffc", line 20, in ?
> >>>>>     from ffc.common.debug import *
> >>>>>   File "/usr/lib/python2.4/site-packages/ffc/__init__.py", line 2, in ?
> >>>>>     from ffc.compiler.compiler import *
> >>>>>   File "/usr/lib/python2.4/site-packages/ffc/compiler/compiler.py", line 37, in ?
> >>>>>     from ffc.format import ufcformat
> >>>>>   File "/usr/lib/python2.4/site-packages/ffc/format/ufcformat.py", line 14, in ?
> >>>>>     from ufc import *
> >>>>> ImportError: No module named ufc
> >>>>>
> >>>>> I have installed ufc.
> >>>> Do you get the same error if you just write a simple Python script
> >>>> test.py containing only the line
> >>>>
> >>>> from ufc import *
> >>>>
> >>>> and then run it by python test.py?
> >>>>
> >>> The problem is that Cywgin does not have
> >>>
> >>>    /usr/local/lib/python2.X/site-packages
> >>>
> >>> in the path.
> >>>
> >>> Is there a reason why ufc installs under /usr/local/lib/python2.x, while 
> >>> other FEniCS packages install under /usr/lib/python2.x?
> >> I don't know, let's ask the other guys.
> >>
> >> Can we change the default location for the installation of UFC to
> >> /usr?
> >>
> >> Garth, in the meantime, just change the variable PREFIX in the UFC
> >> Makefile to /usr. The installation is just a single header file (and
> >> some Python modules) so we have a very simple Makefile instead of a big
> >> build system like scons, autotools etc.
> > 
> > In my opinion, default install prefix should _never_ be /usr unless the
> > native package system of your platform is used. Installing directly in /usr
> > tends to be messy. There is a reason for the PREFIX possibility, use it if
> > you deliberately want to mess thing up. /usr/local is the way to go.
> > 
> > Just my 2øre.
> > 
> 
> I agree. How about changing all project to install under /usr/local by 
> default?
> 
> Garth

Sounds like a good idea, but I don't know how to do this. How does
distutils find where to install?

The manual (http://www.python.org/doc/2.4/inst/alt-install-windows.html)
only talks about how to choose /usr/local instead of /usr, not how to
specify this by default.

Ola?

/Anders