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Install Stackless Python on Ubuntu

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Install Stackless Python on Ubuntu

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I'm just about to write a couple of posts on Stackless Python and theNagare Micro Framework which runs on it. So I've been installing Stackless on my Ubuntu 12.04. Here are some nice copy and paste instructions if you want to play along.

First install the required libraries and get stackless itself:

sudo run apt-get update
sudo apt-get install libreadline-dev
sudo apt-get build-dep python2.7
cd /tmp
wget http://www.stackless.com/binaries/stackless-272-export.tar.bz2
bunzip2 stackless-272-export.tar.bz2
tar xf stackless-272-export.tar

Now install stackless:

cd /tmp/stackless-272-export/
./configure --prefix=/opt/stackless --enable-unicode=ucs4
sudo make install

After the "make" you'll see some failures as below. Just ignore them.

Python build finished, but the necessary bits to build these modules were not found:
_bsddb             bsddb185           dl
imageop            linuxaudiodev      ossaudiodev
To find the necessary bits, look in setup.py in detect_modules() for the module's name.
Failed to build these modules:
_curses            _curses_panel

Now it's time to link your standard (CPython) packages so that they can be used with stackless:

sudo ln -s /usr/lib/python2.7/dist-packages/ /opt/stackless/lib/python2.7/site-packages
sudo ln -s /usr/local/lib/python2.7/dist-packages/ /opt/stackless/lib/python2.7/dist-packages
sudo ln -s  /opt/stackless/bin/python /usr/bin/stackless
sudo vi /opt/stackless/lib/python2.7/site.py

...and edit the paths in the site.py file. At about line 300, edit the file to look like this. It's the second sitepackages.append bit we're adding here:

       elif os.sep == '/':
            sitepackages.append(os.path.join(prefix, "lib",
                                        "python" + sys.version[:3],
            sitepackages.append(os.path.join(prefix, "lib",
                                        "python" + sys.version[:3],
            sitepackages.append(os.path.join(prefix, "lib", "site-python"))

That should be it! Let's test it:

Python 2.7.2 Stackless 3.1b3 060516 (default, Jan  2 2013, 22:39:14)
[GCC 4.6.3] on linux3
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()

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Published at DZone with permission of Col Wilson, DZone MVB. See the original article here.

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