self.type = numpy.double

In [1]: a=numpy.double
In [2]: numba.typeof(a)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-244-7ab9d6ba8d0a> in <module>
----> 1 numba.typeof(a)

C:ProgramDataAnaconda3libsite-packagesnumbatypingtypeof.py in typeof(val
 purpose)
     32         msg = _termcolor.errmsg(
     33             "cannot determine Numba type of %r") % (type(val),)
---> 34         raise ValueError(msg)
     35     return ty
     36

ValueError: cannot determine Numba type of <class 'type'>

In [1]: from struct import Struct
In [2]: a = Struct(">dd")
In [3]: numba.typeof(a)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-76-7ab9d6ba8d0a> in <module>
----> 1 numba.typeof(a)

C:ProgramDataAnaconda3libsite-packagesnumbatypingtypeof.py in typeof(val,
 purpose)
     32         msg = _termcolor.errmsg(
     33             "cannot determine Numba type of %r") % (type(val),)
---> 34         raise ValueError(msg)
     35     return ty
     36

ValueError: cannot determine Numba type of <class 'Struct'>