OpenCV 2.4.8: module compiled against API version 9

Question

I just installed the opencv 2.4.8 . I'm using python 2.7. I tried to add the opencv lib to python according to this tutorial. but when I tried to import the opencv I got this error:

import cv2
 RuntimeError: module compiled against API version 9 but this version 
 of numpy is 7
 Traceback (most recent call last):
 File "<pyshell#2>", line 1, in <module>
 import cv2
 ImportError: numpy.core.multiarray failed to import

I updated my scipy and numpy packages to its latest version, but I got the same error. How to fix this problem? I googled it but I found some solutions for Mac OS.

I use Windows 7.

Answer 1

I got this error too. Finally I figure out I should update numpy to the latest version.

The version of numpy in the tutorial is version 7, but now the team is using version 9 (but numpy team name it 1.8 publicly).

For convenience, check here to download the version I use.

To download the latest version, check here.

• Hadi: I updated the numpy and SciPy but the problem didn't solved :).
• lesca: It is strange. The update solved my problem, but I encounter link error when compiling the source code. BTW, my platform is windows 7.
• Soma: Worked for me. I was following this tutorial : opencvpython.blogspot.fr/2012/05/… but updated with the numpy version lesca used
• Hack-R: Appears as version 0x9 in error message but is named 1.8 publicly.... ugh ugh ugh they need to do things that make sense.

Answer 2

I build OpenCV from source and the problem solved. I used CMake to do that.Don't forget to change the path to the new bin directory in your environment variable.

Answer 3

If you want you can get the 1.9.1 superpack from the following URL.

numpy-1.9.1-win32-superpack-python2.7

This resolved my issue likady split. :)