Updated the opencv version to 2.3.1.

[wjwwood]

I updated the package to support opencv 2.3.1. This is tested on OS X 10.7.1.

∫ python 
Python 2.7.1 (r271:86832, Jun 16 2011, 16:59:05) 
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv
>>> import cv2
>>> ^D
william@arepa:/usr/local (git:opencv-2.3.1:9317f43) 
∫ which python
/usr/bin/python

I am aware of #6692

I think this has either been fixed upstream by opencv or homebrew or OS X. I don't seem to have the issues they are talking about. I am using the system Python though. Maybe we need to retest on SL and with the homebrew python.

Like I said this is working on OS X 10.7.1 with the system Python.

[manphiz]

The python version differs on different versions of Mac. Will be great to specify Python version as per system version.

[wjwwood]

Sorry I don't exactly understand what you mean, something like a Formula
option --with-python= ? Or a system wide option for
specifying the python version to use?

If I were to add an option for specifying the python version to use with
opencv, how would I do that? Is there a good example Formula where that is
done?

Thanks,

William Woodall
Graduate Software Engineering
Auburn University
w@auburn.edu
wjwwood@gmail.com
williamjwoodall.com

On Sat, Sep 10, 2011 at 4:52 AM, Xiyue Deng <
reply@reply.github.com>wrote:

The python version differs on different versions of Mac. Will be great to
specify Python version as per system version.

Reply to this email directly or view it on GitHub:
#7500 (comment)

[manphiz]

Homebrew has a MacOS module that set system version. As Mac OS X 10.5 ships Python 2.5 as default, 10.6 ships Python 2.6 as default, 10.7 ships Python 2.7 as default, the default Python version can be determined by system version. Something like this should work (untested, I'm new to ruby so please correct me):

if MacOS.leopard?
python_version = 2.5
elseif MacOS.snow_leopard?
python_version = 2.6
elseif MacOS.lion?
python_version = 2.7
else
opoo "Unsupported system version."
end

Then the caveat line could be written like this:

export PYTHONPATH="#{HOMEBREW_PREFIX}/lib/python#{python_version}/site-packages/:$PYTHONPATH"

On the other hand, I think it will be beneficial if Homebrew could define the default version for Perl, Python, Tcl, PHP, etc. as they did for gcc. It will further simplify formula that installs modules for those languages.

[wjwwood]

I agree that having a brew set python_version would help with this because
what if you have python installed via brew and want to detect that? Maybe
there is already something like this, something like python_select.

William Woodall
Graduate Software Engineering
Auburn University
w@auburn.edu
wjwwood@gmail.com
williamjwoodall.com

On Sat, Sep 10, 2011 at 5:02 PM, Xiyue Deng <
reply@reply.github.com>wrote:

Homebrew has a MacOS module that set system version. As Mac OS X 10.5 ships
Python 2.5 as default, 10.6 ships Python 2.6 as default, 10.7 ships Python
2.7 as default, the default Python version can be determined by system
version. Something like this should work (untested, I'm new to ruby so
please correct me):

if MacOS.leopard?
python_version = 2.5
elseif MacOS.snow_leopard?
python_version = 2.6
elseif MacOS.lion?
python_version = 2.7
else
opoo "Unsupported system version."
end

Then the caveat line could be written like this:

export
PYTHONPATH="#{HOMEBREW_PREFIX}/lib/python#{python_version}/site-packages/:$PYTHONPATH"

On the other hand, I think it will be beneficial if Homebrew could define
the default version for Perl, Python, Tcl, PHP, etc. as they did for gcc. It
will further simplify formula that installs modules for those languages.

Reply to this email directly or view it on GitHub:
#7500 (comment)

[Sharpie]

@manphiz

Have to be careful as MacOS.snow_leopard? actually returns true if MACOS_VERSION >= 10.6---so it will take over execution even if the computer is running Lion.

It's a bug, but one that has been in Homebrew so long that there are lots of formula using it as a "feature".