# Revision history [back]

### NameError: name 'Integer' is not defined

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>()

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)()

245             if attach:
--> 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...

 2 retagged FrédéricC 4385 ●3 ●37 ●93

### NameError: name 'Integer' is not defined

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>()

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)()

245             if attach: