Installer numba pour python

Je suis en train d'installer numba pour python, mais après en suivant les instructions à partir de la page d'accueil j'ai eu cette erreur que le extension_types page ne peut pas être trouvé.

Je vous serais très reconnaissant si quelqu'un sait ce que je fais mal ou si j'ai raté quelque chose que je devrais installer.

Je vous remercie beaucoup à l'avance.

Python 2.7.2+ (default, Jul 20 2012, 22:15:08) 
Type "copyright", "credits" or "license" for more information.
IPython 0.10.2 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object'. ?object also works, ?? prints more.
In [1]: import numba
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
/home/mijc/Downloads/numba/<ipython console> in <module>()
/home/mijc/Downloads/numba/numba/__init__.py in <module>()
2 # type inferer
3 from numba.special import *
----> 4 from numba import module_type_inference
5 
6 import os
/home/mijc/Downloads/numba/numba/module_type_inference.py in <module>()
6 from numba import *
7 from numba.minivect import minitypes
----> 8 from numba import typesystem, symtab
9 
10 import numpy.random
/home/mijc/Downloads/numba/numba/typesystem/__init__.py in <module>()
2 from exttypes import *
3 from closuretypes import *
4 from ssatypes import *
5 from templatetypes import *
6 from typemapper import *
/home/mijc/Downloads/numba/numba/typesystem/basetypes.py in <module>()
6 
7 import numba
----> 8 from numba import  extension_types, error
9 from numba.minivect.minitypes import *
10 from numba.minivect.minitypes import map_dtype
ImportError: cannot import name extension_types

EDIT:
J'ai installé numba via:

git clone https://github.com/numba/numba.git
cd numba
python setup.py install

Quand j'essaie de l'installer via pip, j'obtiens l'erreur suivante:

pip install numba --upgrade
Downloading/unpacking numba
Downloading numba-0.5.0.tar.gz (333Kb): 333Kb downloaded
Running setup.py egg_info for package numba
Traceback (most recent call last):
File "<string>", line 14, in <module>
File "/home/mijc/Downloads/numba/build/numba/setup.py", line 90, in <module>
cython_gdb=True),
File "/usr/local/lib/python2.7/dist-packages/Cython/Distutils/extension.py", line 108, in __init__
**kw)
TypeError: unbound method __init__() must be called with Extension instance as first argument (got Extension instance instead)
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 14, in <module>
File "/home/mijc/Downloads/numba/build/numba/setup.py", line 90, in <module>
cython_gdb=True),
File "/usr/local/lib/python2.7/dist-packages/Cython/Distutils/extension.py", line 108, in __init__
**kw)
TypeError: unbound method __init__() must be called with Extension instance as first argument (got Extension instance instead)
----------------------------------------
Command python setup.py egg_info failed with error code 1

source d'informationauteur mijc