a=numpy.array([1, 2, 3, 4, 5, 6,]);
b=numpy.array([7,8,9]);
c=numpy.array([10,11,12,13,14,15,16,17,18,19,20]);

##Doesn't do what I want
data=numpy.array([a, b, c],dtype=[('a','f8'),('b','f8'),('c','f8')]);

>>> data = {'a':a, 'b':b, 'c':c}
>>> data['a'] is a
True

>>> np.zeros(3,dtype=[('a',(int,3)),('b',(float,5))])

>>> x=np.zeros(3, dtype=[('a',object), ('b',object)])
>>> x['a'][0] = [1,2,3,4]
>>> x['b'][-1] = "ABCDEF"
>>> print x
[([1, 2, 3, 4], 0) (0, 0) (0, 'ABCD')]

blob = np.array([(a,b,c)],dtype=[('a',object),('b',object),('c',object)])