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2012-10-27T05:04:27.240
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This procedure installs Python2.7 anywhere and eliminates any absolute path references within your <code>env</code> folder (managed by virtualenv). Even virtualenv isn't installed absolutely. Thus, theoretically, you can drop the top level directory into a tarball, distribute, and run anything configured within the tarball on a machine that doesn't have Python (or any dependencies) installed. Contact me with any questions. This is just part of an ongoing, larger project I am engineering. Now, for the drop... <ol> <li>Set up environment folders. <pre><code>$ mkdir env $ mkdir pyenv $ mkdir dep </code></pre></li> <li>Get Python-2.7.3, and virtualenv without any form of root OS installation. <pre><code>$ cd dep $ wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz $ wget https://raw.github.com/pypa/virtualenv/master/virtualenv.py </code></pre></li> <li>Extract and install Python-2.7.3 into the <code>pyenv</code> dir. <code>make clean</code> is optional if you are doing this a 2nd, 3rd, Nth time... <pre><code>$ tar -xzvf Python-2.7.3.tgz $ cd Python-2.7.3 $ make clean $ ./configure --prefix=/path/to/pyenv $ make && make install $ cd ../../ $ ls dep env pyenv </code></pre></li> <li>Create your virtualenv <pre><code>$ dep/virtualenv.py --python=/path/to/pyenv/bin/python --verbose env </code></pre></li> <li>Fix the symlink to python2.7 within <code>env/include/</code> <pre><code>$ ls -l env/include/ $ cd !$ $ rm python2.7 $ ln -s ../../pyenv/include/python2.7 python2.7 $ cd ../../ </code></pre></li> <li>Fix the remaining python symlinks in env. You'll have to delete the symbolically linked directories and recreate them, as above. Also, here's the syntax to force in-place symbolic link creation. <pre><code>$ ls -l env/lib/python2.7/ $ cd !$ $ ln -sf ../../../pyenv/lib/python2.7/UserDict.py UserDict.py [...repeat until all symbolic links are relative...] $ cd ../../../ </code></pre></li> <li>Test <pre><code>$ python --version Python 2.7.1 $ source env/bin/activate (env) $ python --version Python 2.7.3 </code></pre></li> </ol> Aloha.
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