When running a sage file on the command line i get an error since i upgraded sage to SageMath version 8.6, Release Date: 2019-01-15, on my debian box.
> cat /etc/debian_version
buster/sid
this used to work before, when i used the sagemath package from stable, but now i get a python traceback:
sage Fehlerrechnung-2019-02-19-085035.sage Traceback (most recent call last): File "Fehlerrechnung-2019-02-19-085035.sage.py", line 3, in <module> from sage.all_cmdline import * # import sage library File "/usr/lib/python2.7/dist-packages/sage/all_cmdline.py", line 26, in <module> from sage.all import * File "/usr/lib/python2.7/dist-packages/sage/all.py", line 83, in <module> from sage.misc.all import * # takes a while File "/usr/lib/python2.7/dist-packages/sage/misc/all.py", line 84, in <module> from .functional import (additive_order, File "/usr/lib/python2.7/dist-packages/sage/misc/functional.py", line 27, in <module> from sage.rings.complex_double import CDF File "sage/rings/complex_double.pyx", line 1, in init sage.rings.complex_double (build/cythonized/sage/rings/complex_double.c:22356) File "sage/rings/ring.pyx", line 1, in init sage.rings.ring (build/cythonized/sage/rings/ring.c:22311) File "sage/structure/parent_gens.pyx", line 1, in init sage.structure.parent_gens (build/cythonized/sage/structure/parent_gens.c:5388) File "sage/structure/parent_base.pyx", line 1, in init sage.structure.parent_base (build/cythonized/sage/structure/parent_base.c:2543) File "sage/structure/parent_old.pyx", line 1, in init sage.structure.parent_old (build/cythonized/sage/structure/parent_old.c:8649) File "sage/structure/parent.pyx", line 1, in init sage.structure.parent (build/cythonized/sage/structure/parent.c:27339) File "sage/structure/category_object.pyx", line 62, in init sage.structure.category_object (build/cythonized/sage/structure/category_object.c:9657) File "/usr/lib/python2.7/dist-packages/sage/categories/category.py", line 110, in <module> from sage.misc.unknown import Unknown File "/usr/lib/python2.7/dist-packages/sage/misc/unknown.py", line 11, in <module> from sage.structure.unique_representation import UniqueRepresentation File "/usr/lib/python2.7/dist-packages/sage/structure/unique_representation.py", line 570, in <module> class CachedRepresentation(six.with_metaclass(ClasscallMetaclass)): File "/usr/local/lib/python2.7/dist-packages/six.py", line 809, in with_metaclass return type.__new__(metaclass, 'temporary_class', (), {}) TypeError: type.__new__(metaclass) is not safe, use sage.misc.classcall_metaclass.ClasscallMetaclass.__new__()
the file in question is harmless enough:
> head -n 20 Fehlerrechnung-2019-02-19-085035.sage.py
# This file was *autogenerated* from the file Fehlerrechnung-2019-02-19-085035.sage
from sage.all_cmdline import * # import sage library
_sage_const_2 = Integer(2); _sage_const_1 = Integer(1); _sage_const_4 = Integer(4); _sage_const_8 = Integer(8); _sage_const_40 = Integer(40); _sage_const_p999 = RealNumber('.999'); _sage_const_21p75 = RealNumber('21.75'); _sage_const_p25 = RealNumber('.25'); _sage_const_0p2 = RealNumber('0.2'); _sage_const_p05 = RealNumber('.05'); _sage_const_0p001 = RealNumber('0.001'); _sage_const_3p5 = RealNumber('3.5'); _sage_const_0p075 = RealNumber('0.075'); _sage_const_0p99 = RealNumber('0.99'); _sage_const_p075 = RealNumber('.075'); _sage_const_p1 = RealNumber('.1'); _sage_const_8p854187817en12 = RealNumber('8.854187817e-12'); _sage_const_75 = Integer(75); _sage_const_77 = Integer(77); _sage_const_76 = Integer(76); _sage_const_1p001 = RealNumber('1.001'); _sage_const_0p0001 = RealNumber('0.0001')
x,d_e, e_m, e_s, v_ges, U =var('x d_e e_m e_s v_ges U')
d_k = var('d_k', latex_name=r'\varDelta z_{dc}')
d_m = var('d_m', latex_name=r'\varDelta z_{ds}')
#========= dielectric constants ==================================
e_0 = var('e_0', latex_name=r'\varepsilon_0')
#sediment
e_s = var('e_s', latex_name=r'\varepsilon_s')
# seawater
e_m = var('e_m', latex_name=r'\varepsilon_m')
e_Ersatz = var('e_Ersatz', latex_name=r'\varepsilon_{Ersatz}')
e_Ersatz = d_k * ( (e_m/d_m) + (e_s/(d_k-d_m) ) )
show( SR.symbol('e_Ersatz') == e_Ersatz)
#latex(SR.symbol('e_Ersatz') == e_Ersatz)
how can i fix this? is it a debian problem? the debian bug tracker does not know about it: https://bugs.debian.org/cgi-bin/pkgreport.cgi?dist=unstable;package=sagemath
