1 files changed, 30 insertions, 2 deletions

diff --git a/src/mailman/commands/cli_withlist.py b/src/mailman/commands/cli_withlist.py
index 61e1bec7c..bc25363b1 100644
--- a/src/mailman/commands/cli_withlist.py
+++ b/src/mailman/commands/cli_withlist.py
@@ -28,6 +28,8 @@ __all__ = [
 
 import re
 
+from lazr.config import as_boolean
+
 from zope.component import getUtility
 from zope.interface import implements
 
@@ -148,8 +150,34 @@ class Withlist:
                 commit=config.db.commit,
                 abort=config.db.abort,
                 config=config,
-                )
-            interact(upframe=False, banner=banner, overrides=overrides)
+            )
+            banner = '\n'.join([unicode(config.shell.banner), banner])
+            if as_boolean(config.shell.use_ipython):
+                self._start_ipython(overrides, banner) #config.shell.banner)
+            else:
+                self._start_python(overrides, banner) #config.shell.banner)
+
+    def _start_ipython(self, overrides, banner):
+        try:
+            from IPython.frontend.terminal.embed import InteractiveShellEmbed
+            ipshell = InteractiveShellEmbed(banner1=banner,
+                                            user_ns=overrides)
+            ipshell()
+        except ImportError:
+            print _("ipython is not available, set use_ipython to no")
+
+    def _start_python(self, overrides, banner):
+        # set the tab completion
+        import sys
+        try:
+            import readline, rlcompleter
+            readline.parse_and_bind('tab: complete')
+        except ImportError:
+            pass
+        else:
+            sys.ps1 = config.shell.ps1 + ' '
+        interact(upframe=False, banner=config.shell.banner,
+                 overrides=overrides)
 
     def _details(self):
         """Print detailed usage."""