1 files changed, 4 insertions, 6 deletions

diff --git a/src/mailman/utilities/interact.py b/src/mailman/utilities/interact.py
index d74cd8af7..3c38b02aa 100644
--- a/src/mailman/utilities/interact.py
+++ b/src/mailman/utilities/interact.py
@@ -24,7 +24,7 @@ import code
 from mailman import public
 
 
-DEFAULT_BANNER = ''
+DEFAULT_BANNER = object()
 
 
 @public
@@ -33,7 +33,7 @@ def interact(upframe=True, banner=DEFAULT_BANNER, overrides=None):
 
     :param upframe: Whether or not to populate the interpreter's globals with
         the locals from the frame that called this function.
-    :type upfframe: bool
+    :type upframe: bool
     :param banner: The banner to print before the interpreter starts.
     :type banner: string
     :param overrides: Additional interpreter globals to add.
@@ -61,13 +61,11 @@ def interact(upframe=True, banner=DEFAULT_BANNER, overrides=None):
     startup = os.environ.get('PYTHONSTARTUP')
     if startup:
         with open(startup, 'r', encoding='utf-8') as fp:
-            interp.runsource(fp.read(), startup)
+            interp.runcode(compile(fp.read(), startup, 'exec'))
     # We don't want the funky console object in parentheses in the banner.
-    if banner == DEFAULT_BANNER:
+    if banner is DEFAULT_BANNER:
         banner = '''\
 Python %s on %s
 Type "help", "copyright", "credits" or "license" for more information.''' % (
             sys.version, sys.platform)
-    elif not banner:
-        banner = None
     interp.interact(banner)