X-Git-Url: https://git.distorted.org.uk/~mdw/profile/blobdiff_plain/be6f67499ecde598ec78e231fc64a0710a45633e..48a9c9c1a60f4f5ebc71a5e5269b01109c9dcfa4:/dot/ipython-key-bindings.py

diff --git a/dot/ipython-key-bindings.py b/dot/ipython-key-bindings.py
index 558d335..8795404 100644
--- a/dot/ipython-key-bindings.py
+++ b/dot/ipython-key-bindings.py
@@ -1,19 +1,21 @@
 ### -*-python -*-
 
-import IPython as IPY
-import prompt_toolkit as PTK
-
-def ding():
-  with open('/dev/tty', 'w') as f: f.write('\a')
-
-## Key bindings.  Alas, IPython's attempt at Emacs keybindings is abysmal.
-K = PTK.keys.Keys
-F = PTK.filters
-BUF = PTK.enums.DEFAULT_BUFFER
-ipy = IPY.get_ipython()
-try: pt = ipy.pt_cli
-except AttributeError: pass
-else:
+def __mdw_hack_bindings():
+
+  import IPython as IPY
+  import prompt_toolkit as PTK
+
+  def ding():
+    with open('/dev/tty', 'w') as f: f.write('\a')
+
+  ## Key bindings.  Alas, IPython's attempt at Emacs keybindings is abysmal.
+  K = PTK.keys.Keys
+  F = PTK.filters
+  BUF = PTK.enums.DEFAULT_BUFFER
+  ipy = IPY.get_ipython()
+  try: pt = ipy.pt_cli
+  except AttributeError: return
+
   reg = pt.application.key_bindings_registry
   try: bind = reg.add_binding
   except AttributeError:
@@ -45,3 +47,6 @@ else:
 
   bind(K.Escape, u'p')(lambda ev: ev.current_buffer.history_backward())
   bind(K.Escape, u'n')(lambda ev: ev.current_buffer.history_forward())
+
+__mdw_hack_bindings()
+del __mdw_hack_bindings