https://bitbucket.org/which_linden/eventlet/issue/89/add-a-timeout-argument-to-subprocesspopen

diff -r 6e6a02e7ac7c eventlet/green/subprocess.py
--- a/eventlet/green/subprocess.py	Tue Apr 19 09:51:35 2011 -0700
+++ b/eventlet/green/subprocess.py	Thu May 26 09:56:14 2011 +1000
@@ -32,7 +32,7 @@
                     setattr(self, attr, wrapped_pipe)
         __init__.__doc__ = subprocess_orig.Popen.__init__.__doc__
 
-    def wait(self, check_interval=0.01):
+    def wait(self, check_interval=0.01, timeout=None):
         # Instead of a blocking OS call, this version of wait() uses logic
         # borrowed from the eventlet 0.2 processes.Process.wait() method.
         try: