From c928f4bcaa2962e4dd91a531f3252a006cce21d0 2014-12-06 21:20:23
From: Thomas Kluyver <takowl@gmail.com>
Date: 2014-12-06 21:20:23
Subject: [PATCH] Convert parent handle to an int before setting environment variable

Should fix Windows & Python 2 test failures

---

diff --git a/IPython/kernel/launcher.py b/IPython/kernel/launcher.py
index 6f60e52..6171bdb 100644
--- a/IPython/kernel/launcher.py
+++ b/IPython/kernel/launcher.py
@@ -197,7 +197,7 @@ def launch_kernel(cmd, stdin=None, stdout=None, stderr=None, env=None,
             handle = DuplicateHandle(pid, pid, pid, 0,
                                      True, # Inheritable by new processes.
                                      DUPLICATE_SAME_ACCESS)
-            env['JPY_PARENT_PID'] = str(handle)
+            env['JPY_PARENT_PID'] = str(int(handle))
         
         proc = Popen(cmd, **kwargs)