Merge pull request #50 from brendanjerwin/patch-1

Updates to markdown and added OS X Lion instructions.

README → README.md

-This is a python-based host software for reprap printers, in various forms.
-
 Printrun consists of printcore, pronsole and pronterface, and a small collection of helpful scripts.
 
-printcore.py is a library that makes writing reprap hosts easy
-pronsole.py is an interactive command-line host software with tabcompletion goodness
-pronterface.py is a graphical host software with the same functionality as pronsole
-INSTALLING DEPENDENCIES
+  * printcore.py is a library that makes writing reprap hosts easy
+  * pronsole.py is an interactive command-line host software with tabcompletion goodness
+  * pronterface.py is a graphical host software with the same functionality as pronsole
+
+# INSTALLING DEPENDENCIES
+
+## Windows
+Download the following, and install in this order:
+
+  1. http://python.org/ftp/python/2.7.2/python-2.7.2.msi
+  2. http://pypi.python.org/packages/any/p/pyserial/pyserial-2.5.win32.exe
+  3. http://downloads.sourceforge.net/wxpython/wxPython2.8-win32-unicode-2.8.12.0-py27.exe
+  4. http://launchpad.net/pyreadline/trunk/1.7/+download/pyreadline-1.7.win32.exe
+
+## Ubuntu/Debian
+`sudo apt-get install python-serial python-wxgtk2.8`
 
-On Windows, download the following, and install in this order:
-http://python.org/ftp/python/2.7.2/python-2.7.2.msi
-http://pypi.python.org/packages/any/p/pyserial/pyserial-2.5.win32.exe
-http://downloads.sourceforge.net/wxpython/wxPython2.8-win32-unicode-2.8.12.0-py27.exe
-http://launchpad.net/pyreadline/trunk/1.7/+download/pyreadline-1.7.win32.exe
+## Fedora 15
+`sudo yum install pyserial wxpython`
 
-On Ubuntu/debian, do:
-sudo apt-get install python-serial python-wxgtk2.8
+## Mac OS X Lion
 
-On Fedora 15 do:
-sudo yum install pyserial wxpython
+  1. Ensure that the active Python is the system version. (`brew uninstall python` or other appropriate incantations)
+  2. Download an install [wxPython version 2.9-Carbon](http://wxpython.org/download.php#unstable) (the Cocoa version doesn't work)
+  3. Download and unpack pyserial from http://pypi.python.org/packages/source/p/pyserial/pyserial-2.5.tar.gz
+  4. In a terminal, change to the folder you unzipped to, then type in: `sudo python setup.py install`
 
-On Mac OS X, download and install:
-http://downloads.sourceforge.net/wxpython/wxPython2.8-osx-unicode-2.8.12.0-universal-py2.6.dmg
-Grab the source for pyserial from http://pypi.python.org/packages/source/p/pyserial/pyserial-2.5.tar.gz
-Unzip pyserial to a folder. Then, in a terminal, change to the folder you unzipped to, then type in:
-defaults write com.apple.versioner.python Prefer-32-Bit -bool yes
-sudo python setup.py install
+The tools will run just fine in 64bit on Lion, you don't need to mess
+with any of the 32bit settings.
+
+## Mac OS X (pre Lion)
+  1. Download and install http://downloads.sourceforge.net/wxpython/wxPython2.8-osx-unicode-2.8.12.0-universal-py2.6.dmg
+  2. Grab the source for pyserial from http://pypi.python.org/packages/source/p/pyserial/pyserial-2.5.tar.gz
+  3. Unzip pyserial to a folder. Then, in a terminal, change to the folder you unzipped to, then type in:
+     
+     `defaults write com.apple.versioner.python Prefer-32-Bit -bool yes`
+     
+     `sudo python setup.py install`
 
 Alternatively, you can run python in 32 bit mode by setting the following environment variable before running the setup.py command:
-export VERSIONER_PYTHON_PREFER_32_BIT=yes
+
+`export VERSIONER_PYTHON_PREFER_32_BIT=yes`
 
 Then repeat the same with http://launchpad.net/pyreadline/trunk/1.7/+download/pyreadline-1.7.zip
 
-USING PRONTERFACE
+# USING PRONTERFACE
+
+To use pronterface, you need:
 
-To use pronterface, you need: 
-python (ideally 2.6.x or 2.7.x), 
-pyserial (or python-serial on ubuntu/debian), 
-pyreadline (not needed on Linux) and
-wxPython
+  * python (ideally 2.6.x or 2.7.x),
+  * pyserial (or python-serial on ubuntu/debian),
+  * pyreadline (not needed on Linux) and
+  * wxPython
 
 Download and install the above, and start pronterface.py
 Select the port name you are using from the first drop-down, select your baud rate, and hit connect.
@@ -48,12 +63,13 @@ The command box recognizes all pronsole commands, but has no tabcompletion.
 If you want to load stl files, you need to put a version of skeinforge (doesn't matter which one) in a folder called "skeinforge".
 The "skeinforge" folder must be in the same folder as pronterface.py
 
-USING PRONSOLE
+# USING PRONSOLE
 
-To use pronsole, you need: 
-python (ideally 2.6.x or 2.7.x), 
-pyserial (or python-serial on ubuntu/debian) and
-pyreadline (not needed on Linux)
+To use pronsole, you need:
+
+  * python (ideally 2.6.x or 2.7.x),
+  * pyserial (or python-serial on ubuntu/debian) and
+  * pyreadline (not needed on Linux)
 
 Start pronsole and you will be greeted with a command prompt. Type help to view the available commands.
 All commands have internal help, which you can access by typing "help commandname", for example "help connect"
@@ -61,16 +77,17 @@ All commands have internal help, which you can access by typing "help commandnam
 If you want to load stl files, you need to put a version of skeinforge (doesn't matter which one) in a folder called "skeinforge".
 The "skeinforge" folder must be in the same folder as pronsole.py
 
-USING PRINTCORE:
+# USING PRINTCORE
 
 To use printcore you need python (ideally 2.6.x or 2.7.x) and pyserial (or python-serial on ubuntu/debian)
-See pronsole for an example of a full-featured host, the bottom of printcore.py for a simple command-line 
+See pronsole for an example of a full-featured host, the bottom of printcore.py for a simple command-line
 sender, or the following code example:
 
-p=printcore('/dev/ttyUSB0',115200)
-p.startprint(data) # data is an array of gcode lines
-p.send_now("M105") # sends M105 as soon as possible
-p.pause()
-p.resume()
-p.disconnect()
+    p=printcore('/dev/ttyUSB0',115200)
+    p.startprint(data) # data is an array of gcode lines
+    p.send_now("M105") # sends M105 as soon as possible
+    p.pause()
+    p.resume()
+    p.disconnect()
+