Merge pull request #1440 from jstenar/win32-testing

Fix for failing testsuite when using --with-xml-coverage on windows.

This is necessary to get the shiningpanda testing on windows to work. Without the fix all tests fail.

IPython/utils/process.py

@@ -95,14 +95,8 @@ def pycmd2argv(cmd):
     if ext in ['.exe', '.com', '.bat']:
         return [cmd]
     else:
-        if sys.platform == 'win32':
-            # The -u option here turns on unbuffered output, which is required
-            # on Win32 to prevent wierd conflict and problems with Twisted.
-            # Also, use sys.executable to make sure we are picking up the
-            # right python exe.
-            return [sys.executable, '-u', cmd]
-        else:
-            return [sys.executable, cmd]
+        return [sys.executable, cmd]
+
 
 def abbrev_cwd():
     """ Return abbreviated version of cwd, e.g. d:mydir """