Hi,
I am on ubuntu 16.10 (16.04 +1), and I can't compile sage 7.2 (flint error)
Si I install ppa version 7.1 and 
sudo bash sm-install.sh everythink went well. Typing this in a console or in 
sage -n=jupyter get the following ?
Any help
Thanks
Henri

M = Manifold(4, 'M')

print M

---------------------------------------------------------------------------NotImplementedError
                       Traceback (most recent call 
last)<ipython-input-2-56e8ab17fefa> in <module>()----> 1 M = 
Manifold(Integer(4), 'M')      2 print M
/usr/lib/sagemath/src/sage/misc/lazy_import.pyx in 
sage.misc.lazy_import.LazyImport.__call__ 
(/usr/lib/sagemath//src/build/cythonized/sage/misc/lazy_import.c:3560)()    384 
            True    385         """--> 386         return 
self._get_object()(*args, **kwds)    387     388     def __repr__(self):
/usr/lib/sagemath/local/lib/python2.7/site-packages/sage/manifolds/manifold.py 
in Manifold(dim, name, latex_name, field, structure, start_index, **extra_kwds) 
  1653     else:   1654         raise NotImplementedError("manifolds of type {} 
are not ".format(structure) +-> 1655                                   
"implemented")   1656     return TopologicalManifold(dim, name, field, 
structure,   1657                                latex_name=latex_name, 
start_index=start_index,
NotImplementedError: manifolds of type smooth are not implemented


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