Issue #9433: The "-j" option to regrtest now works under Windows too.

pitrou · pitrou · commit 36e778ef02b7 · 2010-08-18T20:44:14.000Z
It is not sure it will be beneficial, though, since process launching is
more expensive under Windows than it is under Linux.
diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
@@ -547,7 +547,8 @@ def work():
                     popen = Popen([sys.executable, '-E', '-m', 'test.regrtest',
                                    '--slaveargs', json.dumps(args_tuple)],
                                    stdout=PIPE, stderr=PIPE,
-                                   universal_newlines=True, close_fds=True)
+                                   universal_newlines=True,
+                                   close_fds=(os.name != 'nt'))
                     stdout, stderr = popen.communicate()
                     # Strip last refcount output line if it exists, since it
                     # comes from the shutdown of the interpreter in the subcommand.
