Flush stdout and stderr when running tests in parallel

(helps getting results in real-time when stdio is transmitted over a pipe or socket)

diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index 75a9bec02eaf803192e71a6868a61869d8fafce7..f01dcef308a7cfe5cb93d8221ff91c6c05eb8c3f 100755 (executable)
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -540,6 +540,8 @@ def main(tests=None, testdir=None, verbose=0, quiet=False,
                     print stdout
                 if stderr:
                     print >>sys.stderr, stderr
+                sys.stdout.flush()
+                sys.stderr.flush()
                 if result[0] == INTERRUPTED:
                     assert result[1] == 'KeyboardInterrupt'
                     raise KeyboardInterrupt   # What else?