Re: [Matplotlib-users] installing matplotlib on mac os X with the *.dmg file

[Timothy D. <tim...@gm...>]

Thank you for the information Paul and Felix.

I have followed your advice and installed a package manager, pip.  However,
running:

sudo pip install matplotlib

did not work.  Instead, the key was:

sudo pip install git+
https://github.com/matplotlib/matplotlib.git#egg=matplotlib-dev

worked well, although I'm not sure why.

For archival purposes, I have pasted my notes below for installing python /
matplotlib on mac os x.

Thanks again,
Tim

First had to install homebrew (http://mxcl.github.com/homebrew/), ran "brew
doctor" and fixed the appropriate warning messages.  Had to add "export
PATH=/usr/local/bin:$PATH" under ~/.bash_profile. Also had to install Xcode
from app store, and download "Developer Tools" under Settings-->Downloads.

brew doctor
brew update

Then ran "brew install python", but this didnt work. So i installed
gfortran instead:

brew install gfortran

then installed python from python.org.  Because I changed the path in the
.bash_profile, this version of python was "first" when I called python.
 ("which python" should yield /usr/local/bin/python, and "python --version"
should give 2.7.2)

i also used homebrew to install "pip", a python module manager, and
gfortran:

brew install pip
brew install gfortran

with pip, you can install PIL, scipy, (and nump):

sudo pip install pil
sudo pip install scipy
sudo pip install numpy

(but be sure you have gfortran before these)

to get matplotlib, instead of:

sudo pip install matplotlib

do:

sudo pip install git+
https://github.com/matplotlib/matplotlib.git#egg=matplotlib-dev

this will make "ipython --pylab" work correctly

Also: I had to install the 32 bit version of python-- not sure if 64/32 bit
works... Doesn't matter which version you
download<http://www.python.org/download/>


To remove python (from here <http://docs.python.org/using/mac.html>),

   1. remove /Applications/Python 2.x
   2. remove the framework folder: /Library/Frameworks/Python.framework
   3. you can remove the symbolic link too,...

To remove matplotlib, here
<http://matplotlib.sourceforge.net/faq/troubleshooting_faq.html#locating-matplotlib-install>


On Fri, Aug 17, 2012 at 5:09 PM, Felix Patzelt <fe...@ne...>wrote:

> The dmg you are referring to appears to install to
> /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages
> (The main library, not the one for in our user directory). Most likely,
> this directory is not in pythons search path. Therefore, python can't find
> any modules installed there. To verify this, first check, whether this
> directory exists. Then start ipython and enter:
>  from sys import path
> path
>
> Path is a list of all paths which are searched for installed modules. If
> my suspicion is correct, the directory where you installed matplotlib is
> not in the list. You can just add it
>
> path.append('/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages')
>
> and then import matplotlib. However, you have add it to your path again
> every time you start a new session. To add it permanently, put an otherwise
> empty text file which includes the path and place it in one of the
> directories that are already on the search path. You have add a .pth suffix
> to this text file when you save it.
>
> Best,
> Felix
>
> ps: There are many ways to install python and packages and all are more
> complicated to what you are used to from the mac - welcome to the world of
> unix / linux software... Still, I have been successful using either
> macports (slow, but reliable) as well as distribute and pip. I recommend
> macports which creates a new installation for everything you want / need in
> /opt. It can also install all of the ipython optional dependencies like the
> qtconsole and the notebook which cannot be done using pure python package
> managers.
>
> Am 17.08.2012 um 23:30 schrieb Timothy Duly:
>
> Hi,
>
> I'm having trouble installing matplotlib on mac os x.  I downloaded the
> dmg file (matplotlib-1.1.1-py2.7-python.org-macosx10.6.dmg<http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.1.1/matplotlib-1.1.1-py2.7-python.org-macosx10.6.dmg/download>
> ) from
> http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.1.1/. I was able to install this package.  Beforehand, I installed python from
> python.org (I read about the need to do this rather than use the shipped
> python for mac os x).  So, the original python is in /usr/bin/python and
> the other, newer one, is in /usr/local/bin/python.
>
> However, after running "ipython -pylab", I get an error message:
>
> Python 2.7.1 (r271:86832, Aug  5 2011, 03:30:24)
> Type "copyright", "credits" or "license" for more information.
>
> IPython 0.13 -- An enhanced Interactive Python.
> ?         -> Introduction and overview of IPython's features.
> %quickref -> Quick reference.
> help      -> Python's own help system.
> object?   -> Details about 'object', use 'object??' for extra details.
> [TerminalIPythonApp] GUI event loop or pylab initialization failed
> ---------------------------------------------------------------------------
> ImportError                               Traceback (most recent call last)
> /Library/Python/2.7/site-packages/ipython-0.13-py2.7.egg/IPython/core/pylabtools.pyc
> in find_gui_and_backend(gui)
>     194     """
>     195
> --> 196     import matplotlib
>     197
>     198     if gui and gui != 'auto':
>
> ImportError: No module named matplotlib
>
> It seems that I don't have a module-- but I just installed it?
>
> Side note:  I've read to the best of my ability this page here,
> http://matplotlib.sourceforge.net/faq/installing_faq.html#os-x-notes ,
> but there seems to be a disconnect on this page between the actual
> installation procedure.  For example, no where on this page does it mention
> about a *.dmg file, yet the sourceforge site has the *.dmg file.  And this
> help site mentions *.zip files, but this time the sourceforge download page
> does not have any *.zip files!  What is going on here?
>
> Thanks,
> Tim
>
>
>
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