Oh, thanks, that helps. I guess I'll have to restructure the code. On Jul 21, 2:06 am, Burcin Erocal <bur...@erocal.org> wrote: > Hi, > > On Thu, 21 Jul 2011 00:42:38 -0700 (PDT) > > > > > > > > > > Eviatar <eviatarb...@gmail.com> wrote: > > I am working on a physical constants module, but for whatever reason I > > can't get it to correctly import the units module. > > > I import the units class using "from units import units", but I get: > > > <snip> > > > /home/eviatar/sage-4.7-linux-64bit-ubuntu_10.04.1_lts-x86_64-Linux/ > > local/lib/python2.6/site-packages/sage/symbolic/all.py in <module>() > > 12 from units import units > > 13 > > ---> 14 import physical_constants > > 15 > > 16 > > > <snip backtrace> > > > Is it a problem that physical_constants is imported in all.py along > > with the units module? Because when I run the file using %run, there > > is no error. I don't see what other way there is to do it though. > > You introduce a circular import when you add the import statement for > physical constants to sage/symbolic/all.py. > > The first part of the traceback looks exactly like the one from #11116. > I was just trying to clean up some of those dependencies. The patch > attached to that ticket doesn't solve the problem there, but it might > help you. > > http://trac.sagemath.org/sage_trac/attachment/ticket/11116/trac_11116... > > Cheers, > Burcin
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