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(New page: ==How to Install Python 2.5 on Apple TV== Source: '''Michael Hanney''' http://michaelhanney.com/blog/2008/03/27/how-to-install-python-on-apple-tv/ Download the Universal Python 2.5 (Ma...)
(How to Install Python 2.5 on Apple TV: added space to fix typo)
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   sudo ln -s/Library/Frameworks/Python.framework/Versions/Current/bin/python /usr/bin/python   
   sudo ln -s /Library/Frameworks/Python.framework/Versions/Current/bin/python /usr/bin/python   

Revision as of 00:23, 19 September 2008

How to Install Python 2.5 on Apple TV

Source: Michael Hanney http://michaelhanney.com/blog/2008/03/27/how-to-install-python-on-apple-tv/

Download the Universal Python 2.5 (Mac OS X 10.3.9 and later, Intel or PPC) package


Copy the dmg to the Apple TV that already has ssh enabled. Use the -1 (one) argument to scp to use SSH version 1.

 scp -1 http://www.pythonmac.org/packages/py25-fat/dmg/python-2.5-macosx.dmg frontrow@  

Log in to the Apple TV over SSH, also uses the -1 argument to use SSH version 1. (The IP address of my Apple TV is, obviously your may be different).

 ssh -1 frontrow@  

Change directory to Documents

 cd Documents  

Make a directory into which we will extract the Python.framework package files from the installer dmg

 mkdir Python.framework

Mount the disk image

 sudo hdiutil mount python-2.5-macosx.dmg  

We want to install just the Python.framework

“This package installs Python.framework, that is the python interpreter and the standard library. This also includes Python wrappers for lots of Mac OS X API’s.”

Change directory to the mount location and take a look around at the contents

 cd /Volumes/Univeral\ MacPython\2.5/MacPython.mpkg/Contents/Packages/PythonFramework-2.5.pkg/Contents  

Copy all of the Contents directory to our ~/Documents/Python.framework directory

 cp -r * ~/Documents/Python.framework/

Unmount the .dmg disk image

 sudo hdiutil unmount /Volumes/Univeral\ MacPython\ 2.5

Prepare to manually move (or copy) the contents of the installer to the default locations on the Apple TV

 cd ~/Documents/Python.framework/  

Unzip the entire gzipped archive

 gunzip Archive.pax.gz

Extract the contents of the pax archive. (I am not familiar with pax yet, but I guess it is like a tar)

 pax -r -f Archive.pax  

Delete the .pax file now that we have extracted everything from it.

 rm -rf Archive.pax  

So where do we install the archive contents? We see from the Info.plist that the default installation destination is /Library/Frameworks/Python.framework


Let’s manually create that directory and start moving files

 mkdir /Library/Frameworks/Python.framework   
 mv Versions /Library/Frameworks/Python.framework  

Let’s recreate those symbolic links in the installation directory

 cd /Library/Frameworks/Python.framework   
 ln -s Versions/Current/Headers Headers   
 ln -s Versions/Current/Python Python   
 ln -s Versions/Current/Resources Resources  

The python runtime executable is at /Library/Frameworks/Python.framework/Versions/Current/bin/python. We want to leave it there. All we need to do now is create the symbolic link in /usr/bin

 sudo ln -s /Library/Frameworks/Python.framework/Versions/Current/bin/python /usr/bin/python  

Testing it out

We haven’t visited the Resources directory yet. I’m not entirely sure how the OS X installer would have used this, if at all, but there is a shell script called postflight in /Resources/ that recompiles the .py files library we just installed. It looks important so I’m going to execute it. First I’m going to change to that directory.

 cd /Library/Frameworks/Python.framework/Versions/Current/Resources  

Before we run the postflight shell script, we’ll edit the lines that change the ownership of the installation to admin, to root:admin because there is no admin user on the Apple TV. Instead, we will chown the installation to ‘root:admin’

At this point I remember I have not yet found a text editor on the Apple TV. No problem, we can use sed, the stream editor to replace ‘admin’ to ‘root:admin’ and save the result to a new file called postflight.root. Isn’t it great that Apple TV is a unix system!

 sed s/admin/root:admin/ < postflight > postflight.root  

make our new file executable

 chmod 755 postflight.root  

Now lets execute postflight.root and watch how quickly the AppleTV complies python source code.

 sudo ./postflight.root