[fixed?] Factoring for a subspace of ModularSymbols in general about sage HOT 5 CLOSED

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| SAGE Version 2.8.2, Release Date: 2007-08-22                       |
| Type notebook() for the GUI, and license() for information.        |
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sage: M = ModularSymbols(Gamma0(22),2,sign=1)
sage: M1 = M.decomposition()[1]
sage: M1
Modular Symbols subspace of dimension 3 of Modular Symbols space of dimension 5 for Gamma_0(22) of weight 2 with sign 1 over Rational Field
sage: M1.is_simple()
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<type 'exceptions.NotImplementedError'>   Traceback (most recent call last)

/tmp/Work2/sage-2.8.2/<ipython console> in <module>()

/tmp/Work2/sage-2.8.2/local/lib/python2.5/site-packages/sage/modular/modsym/space.py in is_simple(self)
    234             return self._is_simple
    235         except AttributeError:
--> 236             D = self.factorization()
    237             if len(D) == 0 or len(D) == 1 and D[0][1] == 1:
    238                 self._is_simple = True

/tmp/Work2/sage-2.8.2/local/lib/python2.5/site-packages/sage/modular/modsym/subspace.py in factorization(self)
    197         if r != s:
    198             raise NotImplementedError, "modular symbols factorization not fully implemented yet --  self has dimension %s, but sum of dimensions of factors is %s"%(
--> 199             r, s)
    200         self._factorization = sage.structure.factorization.Factorization(D, cr=True)
    201         return self._factorization

<type 'exceptions.NotImplementedError'>: modular symbols factorization not fully implemented yet --  self has dimension 3, but sum of dimensions of factors is 2
sage: