Defer import of InteractiveConsole

Author: kotfu

cmd2/cmd2.py

@@ -44,7 +44,6 @@
 import tempfile
 import traceback
 from typing import Callable, List, Optional, Union, Tuple
-from code import InteractiveConsole
 
 import pyperclip
 
@@ -2794,6 +2793,7 @@ def onecmd_plus_hooks(cmd_plus_args):
                 self.pystate['self'] = self
 
             localvars = self.pystate
+            from code import InteractiveConsole
             interp = InteractiveConsole(locals=localvars)
             interp.runcode('import sys, os;sys.path.insert(0, os.getcwd())')
 

speedup_import.md

@@ -38,10 +38,21 @@ to import the `cmd2` module.
 
 ## Defer unittest
 
-In commit 8bc2c37a we deferring the import of `unittest` until we need it to
+In commit 8bc2c37a we defer the import of `unittest` until we need it to
 test a transcript.
 ```
 $./mtime.sh ~/.pyenv/versions/cmd2-3.6/bin/python -c "import cmd2"
 100 iterations
 average: real 0.131 user 0.091 sys 0.030
 ```
+
+
+## Defer InteractiveConsole from code
+
+In commit f3346ba1 we defer the import of `InteractiveConsole` until the user
+wants to run the `py` command.
+```
+$ ./mtime.sh ~/.pyenv/versions/cmd2-3.6/bin/python -c "import cmd2"
+100 iterations
+average: real 0.131 user 0.090 sys 0.030
+```