Added ability to use ipy for embedded IPython to submenus.py example

This is simply to allow introspection on self for debug and development

1 files changed, 23 insertions, 1 deletions

diff --git a/examples/submenus.py b/examples/submenus.py
index 6fcbb307..52f26e08 100644
--- a/examples/submenus.py
+++ b/examples/submenus.py
@@ -10,9 +10,11 @@ of the submenu. Nesting of the submenus is done with the cmd2.AddSubmenu() decor
 
 
 """
-
 from __future__ import print_function
+import sys
+
 import cmd2
+from IPython import embed
 
 
 class ThirdLevel(cmd2.Cmd):
@@ -48,6 +50,16 @@ class SecondLevel(cmd2.Cmd):
         self.top_level_attr = None
         self.second_level_attr = 987654321
 
+    def do_ipy(self, arg):
+        """Enters an interactive IPython shell.
+
+        Run python code from external files with ``run filename.py``
+        End with ``Ctrl-D`` (Unix) / ``Ctrl-Z`` (Windows), ``quit()``, '`exit()``.
+        """
+        banner = 'Entering an embedded IPython shell type quit() or <Ctrl>-d to exit ...'
+        exit_msg = 'Leaving IPython, back to {}'.format(sys.argv[0])
+        embed(banner1=banner, exit_msg=exit_msg)
+
     def do_say(self, line):
         print("You called a command in SecondLevel with '%s'. "
               "It has access to top_level_attr: %s" % (line, self.top_level_attr))
@@ -72,6 +84,16 @@ class TopLevel(cmd2.Cmd):
         self.prompt = 'TopLevel '
         self.top_level_attr = 123456789
 
+    def do_ipy(self, arg):
+        """Enters an interactive IPython shell.
+
+        Run python code from external files with ``run filename.py``
+        End with ``Ctrl-D`` (Unix) / ``Ctrl-Z`` (Windows), ``quit()``, '`exit()``.
+        """
+        banner = 'Entering an embedded IPython shell type quit() or <Ctrl>-d to exit ...'
+        exit_msg = 'Leaving IPython, back to {}'.format(sys.argv[0])
+        embed(banner1=banner, exit_msg=exit_msg)
+
     def do_say(self, line):
         print("You called a command in TopLevel with '%s'. "
               "TopLevel has attribute top_level_attr=%s" % (line, self.top_level_attr))