Hi,
I ran many times this worksheet and I had no problem. Today I update to new
sagemanifolds 0.9.1 and sage-7.3 from sagemath binary (I can 't get it
working with ppa AIMS I got rights problems) and ran into this error :
EM_F.exterior_der()[:]
All with exterior_der have errors, is there a way to correct it ?
Best regards
Henri
---------------------------------------------------------------------------AttributeError
Traceback (most recent call
last)<ipython-input-10-6688356e2a82> in <module>()----> 1 EM_F.exterior_der()[:]
/home/pi/sage/src/sage/structure/element.pyx in
sage.structure.element.Element.__getattr__
(/home/pi/sage/src/build/cythonized/sage/structure/element.c:4152)() 317
dummy_error_message.name = name 318 raise
dummy_attribute_error--> 319 return getattr_from_other_class(self,
P._abstract_element_class, name) 320 321 def __dir__(self):
/home/pi/sage/src/sage/structure/misc.pyx in
sage.structure.misc.getattr_from_other_class
(/home/pi/sage/src/build/cythonized/sage/structure/misc.c:1772)() 251
dummy_error_message.cls = type(self) 252 dummy_error_message.name =
name--> 253 raise dummy_attribute_error 254 try: 255
attribute = getattr(cls, name)
AttributeError: 'DiffFormFreeModule_with_category.element_class' object has no
attribute 'exterior_der'
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