Compiling/Installing Python 2.7 on OSX 10.6

Philip Semanchuk philip at
Thu Nov 4 21:22:53 CET 2010

On Nov 4, 2010, at 4:05 PM, Ned Deily wrote:

> In article 
> <238cec6d-2f47-4c97-8941-e28e6808946c at>,
> Jeremy <jlconlin at> wrote:
> [...]
>> I downloaded the source from and extracted with 'tar -xzvf
>> Python-2.7.tgz'  My home space is on some network somewhere.  I think
>> the network filesystem creates the ._ at the beginning of the files.
>> It's really quite annoying.
> It is and really shouldn't be happening.  If I understand correctly, 
> whoever administers your system is doing its users a disservice by 
> putting OS X home directories on such a file system.
>>> The path names look a little suspicious, too:
>>> /home/jlconlin.  What file system type are these files on?  You
>>> shouldn't run into problems if you use an HFS+ file system (for
>>> instance) and extract the tarball from the command line using
>>> /usr/bin/tar.
>> I am intentionally installing in my home directory (i.e., /home/
>> jlconlin) because I don't have access to /usr/local.  Supposedly this
>> is possible, and in fact common.
> It is common and not normally a problem.  I was just noting that the 
> path name was not the OS X default of /Users/jlconlin.
> That said, there are a couple of options.  Either find another file 
> system to install to or, after extracting, you may be able to delete the 
> spurious '._' files by a judicious use of find (-name '\.\_*' perhaps), 
> or you could probably just ignore all the "compiling" errors.  Those 
> aren't "compile" errors in the sense of C compiler errors; rather they 
> are from one of the final install steps that produces optimized .pyc and 
> .pyo versions of all of the standard library .py files.  The ._ files 
> aren't python files but they do end in .py so compileall mistakenly 
> tries to bytecompile them, too.

You might want to try this before running tar to see if it inhibits the ._ files:

I know that tells tar to ignore those files (resource forks, no?) when building a tarball. I don't know if it helps with extraction though.

Good luck

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