stefanfoulis/osx_developer_installation.rst

## osx_developer_installation.rst

      
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              osx_developer_installation.rst
            
          
    OSX Developer System installation

This guide assumes a fresh install of Mac OSX 10.7 Lion.
Brew User

Create the a User called "brew" and check "Allow user to administer this computer". Open a console as brew or switch to the brew user using sudo su - brew.
Xcode

Install Xcode and the Command Line Tools from inside the Xcode Preferences. (You can use the App Store to install Xcode)
Homebrew

Follow https://github.com/mxcl/homebrew/wiki/installation to get the basic setup up and running. (the default, not the alternate installs).
Don't forget to install the requirements (Xcode, X11, Java Developer Update) mentioned in the installation guide.
Please note the recommendations below.
Dedicated brew user

Installing as root is not recommended by the homebrew authors. But I hate nothing more than accidentally installing a python package globally when I forget activating a virtualenv. To prevent this I decided to create a dedicated user called brew who has control over /usr/local/. So for everything brew related and to install global python/ruby/whatever packages it is necessary to su to brew: sudo su - brew.
python and stuff

See https://github.com/mxcl/homebrew/wiki/Homebrew-and-Python and https://github.com/mxcl/homebrew/wiki/Gems%2C-Eggs-and-Perl-Modules for details.
the basics:
brew install python
/usr/local/bin/pip install --upgrade distribute
homebrew sets things up so that all packages installed via python setup.py install, easy_install or pip get their commands installed to /usr/local/share/python/ by default (see the above link for an explanation). So the first rule of business is to add that path to your PATH. Also if you want to use your homebrew python (and other homebrew stuff) by default, /usr/local/bin should be all the way at the front of your PATH. If you decided to make a dedicated brew user, do this for this user as well.
~/.bash_profile or ~/.profile (I recommend .profile because it works in bash and zsh:
PATH=/usr/local/bin:/usr/local/share/python:$PATH
export PATH


Note

remember to open a new terminal or call source ~/.bash_profile in all of your open terminal windows to get PATH updated.

Before installing stuff with pip, make sure the above PATH changes worked and you are using the correct version.:
pip --version
should return something like (a path with /usr/local/):
pip 1.1 from /usr/local/lib/python2.7/site-packages/pip-1.1-py2.7.egg (python 2.7)
PIL

install some dependencies:
brew install libjpeg
brew install lcms
brew install libtiff
If you don't need FREETYPE support, the regular pip install PIL will work. There is no real need to install PIL globally then.
If you need FREETYPE, choose one of these three options. I recommend PIL with patching setup.py:
PIL with patching setup.py

Since PIL is not packaged correctly, setup.py needs to be tweaked.
Use the newest source version of PIL from http://www.pythonware.com/products/pil/ , download, upack and edit FREETYPE_ROOT = ("/usr/x11/lib","/usr/x11/include",) in setup.py. Then:
python setup.py build_ext -i
python setup.py install
This method has the advantage, that other packages that have PIL as a dependency will detect that it is already installed.
Pillow

Pillow is an alternative Distribution of PIL:
pip install Pillow
Pillow does a great job of finding all the dependencies it needs in OSX. But it sucks a bit if an other packages list PIL as a dependency, because Pillow will not be recognized as a valid PIL installation and PIL will be installed again.
PIL globally with homebrew

Homebrew has a formula for PIL:
brew install pil


Attention

This may produce the dreaded AccessInit: hash collision: 3 for both 1 and 1 error if some apps import PIL as from PIL import Image and others as import Image.

PIL compatibility

Some python packages don't work when PIL is installed with the PIL prefix. Add a PIL.pth file in /usr/local/lib/python2.7/site-packages/PIL.pth containing the string PIL. Now both from PIL import Image and import Image will work.
This oneliner will do exactly that:
echo "PIL" > /usr/local/lib/python2.7/site-packages/PIL.pth
Aggdraw

aggdraw provides much better anti-aliasing than PIL . And lots of other stuff.
use this version: http://bitbucket.org/2degrees/aggdraw-64bits/src
this needs mercurial to be installed (pip install mercurial) :
mkdir ~/tmp
cd ~/tmp
hg clone https://stefanfoulis@bitbucket.org/2degrees/aggdraw-64bits
cd aggdraw-64bits
/usr/local/bin/python setup.py build_ext -i
/usr/local/bin/python setup.py install
Enabling freetype does not work for me. Please share if you find a way :-)
Other graphics related stuff

brew install ghostscript
brew install imagemagick
# barcode (qrcode and others) reading lib
brew install zbar
pip install zbar
MySQL

server:
brew install mysql
# look at the instructions brew prints after installation. this is the short version:
unset TMPDIR
mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
mkdir -p ~/Library/LaunchAgents
cp /usr/local/Cellar/mysql/5.5.14/com.mysql.mysqld.plist ~/Library/LaunchAgents/
launchctl load -w ~/Library/LaunchAgents/com.mysql.mysqld.plist
# set a root password
/usr/local/Cellar/mysql/5.5.20/bin/mysqladmin -u root password 'new_password'
client:
brew install mysql-connector-c
On my machine brew did not link mysql_client in /usr/local/bin, so I had to do it manually. This is probably a bug homebrew and is likely to be fixed soon.:
cd /usr/local/bin
ln -x ../Cellar/mysql/<mysql-version>/bin/mysql_config ./
pip install mysql-python
Postgres

server:
PYTHON=/usr/local/bin/python  brew install postgresql
# look at the instructions brew prints after installation. this is the short version:
initdb /usr/local/var/postgres -E utf8
mkdir -p ~/Library/LaunchAgents
cp /usr/local/Cellar/postgresql/9.1.3/homebrew.mxcl.postgresql.plist ~/Library/LaunchAgents/
launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
createuser # create the initial postgres user
python client bindings (does not work without the server):
pip install psycopg2
postgis / geodjango

packages:
pip install numpy
brew install gdal
brew install postgis # this will handle installing postgres, geos, proj4, and postgis
creating a spatially-enabled database template:
createdb template_postgis # create a standard postgres db
createlang plpgsql template_postgis # enable the PL/pgSQL PostGIS functions
psql -d template_postgis -f /usr/local/Cellar/postgis/1.5.3/share/postgis/postgis.sql
psql -d template_postgis -f /usr/local/Cellar/postgis/1.5.3/share/postgis/spatial_ref_sys.sql
Creating a new database based on template_postgis:
createdb -T template_postgis [yourdatabase]
Alternatively it is possible to enable spatial functions on a existing databases by calling the above commands for creating template_postgis (except createdb, of course). Just use your existing database name instead of template_postgis.
memcached dependencies

brew install libmemcached
spatialite

packages:
brew install spatialite-tools
solr

brew install solr
rabbitmq

brew install rabbitmq
set up a virtualhost (repeat for each app):
/usr/local/sbin/rabbitmqctl add_user myusername mypassword
/usr/local/sbin/rabbitmqctl add_vhost myvhost
/usr/local/sbin/rabbitmqctl set_permissions -p myvhost myusername ".*" ".*" ".*"
follow: http://readthedocs.org/docs/celery/en/2.3/getting-started/broker-installation.html#configuring-the-system-host-name (hostname)
Add correct userrole:
psql -s postgres
alter user postgres with role superuser;
MongoDB


brew install mongodb # look at the instructions brew prints after installation. this is the short version: cp /usr/local/Cellar/mongodb/1.8.2-x86_64/org.mongodb.mongod.plist ~/Library/LaunchAgents/ launchctl load -w ~/Library/LaunchAgents/org.mongodb.mongod.plist

Mongohub (http://mongohub.todayclose.com/) is an awesome OSX ui for mongodb.
gevent dependencies

gevent and related packages require libevent:
brew install libevent
Other useful tools

general:
brew install wget
hub is a useful extension to make git github aware. gist is a commandline interface to github gists.
git:
brew install git
brew install hub
brew install git-flow
brew install gist
brew install git-extras git-hg git-multipush git-sh git-svn-abandon git-utils
mercurial (hg):
pip install mercurial


Attention

Installation of the mercurial 2.1.1 package from pypi does not work. See http://mercurial.selenic.com/bts/issue3277 for details. Until 2.1.2 is released I recommend downloading the source and running python setup.py install.


Attention

I had problems installing mercurial with pip on a 32bit MacBook Pro (Core Duo and less) because it failed to compile the 64bit version of the mercurial.base85 extension. So I downloaded the mercurial 1.8.2 package from pypi and removed -arch x86_64 near the end of setup.py and the ran python setup.py install and it worked fine.

xgettext

install and make the command globally available:
brew install gettext
brew link gettext
more useful stuff

brew install ssh-copy-id
brew install vcprompt
pip install virtualenv
pip install virtualenvwrapper
brew install bash-completion
pip install ipython
pip install bpython
virtualenv

and virtuelenvwrapper. See http://www.doughellmann.com/docs/virtualenvwrapper/ for details. :
pip install virtualenv
pip install virtualenvwrapper
Add this to you shell (.bash_profile or similar):
export VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python
source /usr/local/share/python/virtualenvwrapper.sh
the best packagage ever

the most useful package. this one is a must.:
brew install cowsay
cowsay You can now code python on OSX. Congratulations!