tracked it down to this change in eventlet
https://bitbucket.org/which_linden/eventlet/diff/eventlet/green/os.py?diff2=2e0b34668e60&at=default
tracked it down to this change in eventlet
https:/ /bitbucket. org/which_ linden/ eventlet/ diff/eventlet/ green/os. py?diff2= 2e0b34668e60& at=default