On 07/12/16 12:20, than...@debian.org wrote:
Hi sage-devel,we're almost ready to upload Sage to Debian (in fact we basically have to upload it this week to make sure it's included in the next Debian release). However, on Sunday python 2.7.13rc1 was uploaded to Debian and now we are facing a bug that I didn't quite manage to work around yet and that blocks any development at the moment. This happens whenever Unknown is imported, meaning during the docbuild and when starting sage: ... from sage.misc.unknown import Unknown File "<BUILDDIR>/usr/lib/python2.7/dist-packages/sage/misc/unknown.py", line 164, in <module> Unknown = UnknownClass() File "sage/misc/classcall_metaclass.pyx", line 330, in sage.misc.classcall_metaclass.ClasscallMetaclass.__call__ (<CYTHONIZED>/sage/misc/classcall_metaclass.c:1413) File "sage/misc/cachefunc.pyx", line 1059, in sage.misc.cachefunc.CachedFunction.__call__ (<CYTHONIZED>/sage/misc/cachefunc.c:6080) File "<BUILDDIR>/usr/lib/python2.7/dist-packages/sage/structure/unique_representation.py", line 1022, in __classcall__ instance = typecall(cls, *args, **options) File "sage/misc/classcall_metaclass.pyx", line 497, in sage.misc.classcall_metaclass.typecall (<CYTHONIZED>/sage/misc/classcall_metaclass.c:1862) TypeError: sage.misc.fast_methods.WithEqualityById.__new__(UnknownClass) is not safe, use object.__new__() I'm pretty sure it's caused by the change of https://bugs.python.org/issue5322 which is included in python 2.7.13rc1. I hope you can help me to fix this, or at least provide a workaround.
What did you try so far? The most obvious thing to try, as far as I can see, is to add __new__ = object.__new__() before def __init__(self): in sage/misc/unknown.py Francois -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
