Hi, all of a sudden, I'm experiencing a strange error and cannot find any solution for it. Sage itself works fine, but as soon as I try to load any .sage file, the application can't start. Inside sage I can do any calculation/operation as usual, but if I for example load an application that contains:
a=1
b=2
sage returns:
---------------------------------------------------------------------------
NameError Traceback (most recent call last)
<ipython-input-1-496f9e9073df> in <module>()
----> 1 load("u.sage")
sage/structure/sage_object.pyx in sage.structure.sage_object.load (/build/sagemath/src/sage-7.4/src/src/build/cythonized/sage/structure/sage_object.c:12333)()
/usr/lib/python2.7/site-packages/sage/repl/load.pyc in load(filename, globals, attach)
245 if attach:
246 add_attached_file(fpath)
--> 247 exec(preparse_file(open(fpath).read()) + "\n", globals)
248 elif ext == '.spyx' or ext == '.pyx':
249 if attach:
/usr/lib/python2.7/site-packages/sage/structure/sage_object.so in <module>()
NameError: name 'Integer' is not defined
Yesterday everything was working fine. I hadn't done any system upgrades and the error appears on programs written and working yesterday and on new written programs.
Does anyone know how to solve this error or where it suddenly comes from? A restart didn't change anything...
