Run pytest with buildout in xdist mode (pytest-xdist)

gistfile1.txt

buildout.cfg:

[py]
recipe = zc.recipe.egg
...
interpreter = py
initialization =
    try:
        sys.argv.remove('-u')
    except ValueError:
        pass
    import sys, os
    unbuffered = os.fdopen(sys.stdout.fileno(), 'w', 0)
    sys.stdout = unbuffered


Run tests:

bin/py.test --tx='2*popen//python=bin/py' --dist=load

For anyone trying this on Python 3, I had more luck with this:
https://gist.github.com/href/b72b317db2d679711883

from http://stackoverflow.com/a/107717/138103