Hello, sorry if I'm doing something bad, I'm super noob using Sage in my computer instead of using CoCalc server.
I'm learning about representation theory and I want to make some computations using sagemath.
When I'm using my jupyter notebook repeating the example provided by sage's tutorial we have an error when I call the function invariant_module()
I get the following error:
KeyError Traceback (most recent call last) /Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/site-packages/sage/structure/category_object.pyx in sage.structure.category_object.CategoryObject.getattr_from_category (build/cythonized/sage/structure/category_object.c:7075)() 838 try: --> 839 return self.__cached_methods[name] 840 except KeyError:
KeyError: 'invariant_module'
During handling of the above exception, another exception occurred:
AttributeError Traceback (most recent call last) <ipython-input-3-e8a722bdce17> in <module> 1 from sage.modules.with_basis.representation import Representation 2 R = Representation(G, M, action) ----> 3 I = R.invariant_module()
/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/site-packages/sage/structure/category_object.pyx in sage.structure.category_object.CategoryObject.__getattr__ (build/cythonized/sage/structure/category_object.c:6994)() 831 AttributeError: 'PrimeNumbers_with_category' object has no attribute 'sadfasdf' 832 """ --> 833 return self.getattr_from_category(name) 834 835 cdef getattr_from_category(self, name):
/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/site-packages/sage/structure/category_object.pyx in sage.structure.category_object.CategoryObject.getattr_from_category (build/cythonized/sage/structure/category_object.c:7160)() 846 cls = self._category.parent_class 847 --> 848 attr = getattr_from_other_class(self, cls, name) 849 self.__cached_methods[name] = attr 850 return attr
/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/site-packages/sage/cpython/getattr.pyx in sage.cpython.getattr.getattr_from_other_class (build/cythonized/sage/cpython/getattr.c:2553)() 365 dummy_error_message.cls = type(self) 366 dummy_error_message.name = name --> 367 raise AttributeError(dummy_error_message) 368 cdef PyObject* attr = instance_getattr(cls, name) 369 if attr is NULL:
AttributeError: 'Representation_with_category' object has no attribute 'invariant_module'
But if I try in Cocalc I have no problem. Am I doing something bad?
