An easy_install that forces packages to undergo 2to3 before installing.

easy_install_2to3.py

import os
import os.path
import urllib
import tarfile
import tempfile
import shlex

def easy_install_2to3(package_name):
    """A lot of packages work just fine in py3k if you run them
    through 2to3, but for whatever reason the authors have been too
    lazy to build 2to3 into their setup.py. This downloads the package
    and runs 2to3 on it first, then installs it."""
    import xmlrpc.client
    from setuptools.command import easy_install
    from lib2to3 import main as two2three
    pypi = xmlrpc.client.ServerProxy("http://pypi.python.org/pypi")
    version = pypi.package_releases(package_name)[0]
    for p in pypi.release_urls(package_name,version):
        if p["packagetype"] == "sdist":
            url = p["url"]
            break
    else:
        raise Exception("Can't install {0}. No URL to "
                        "download from.".format(package_name))
    #Download the package to a temporary staging directory
    staging_dir = tempfile.mkdtemp()
    print(staging_dir)
    current_directory = os.path.abspath(os.curdir)
    try:
        os.chdir(staging_dir)
        tarball = os.path.join(staging_dir,"package.tar.gz")
        urllib.request.urlretrieve(url,tarball)
        tar = tarfile.open(tarball,mode="r:*")
        tar.extractall()
        package_dir = os.walk(os.curdir).__next__()[1][0]
        two2three.main("lib2to3.fixes",shlex.split("-w {0}".format(package_dir)))
        easy_install.main(shlex.split(package_dir))
    finally:
        os.chdir(current_directory)

gistfile2.txt

>>> from easy_install_2to3 import easy_install_2to3
>>> easy_install_2to3("Markdown")