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From 04c5d358c7ab74d3ddab4f7662e539393d8604c6 Mon Sep 17 00:00:00 2001
From: Lucretiel <Lucretiel@users.noreply.github.com>
Date: Wed, 13 May 2015 13:12:43 -0400
Subject: [PATCH] register now checks for missing ctypes
If ctypes is None, then no input hooks may be registered; `InputHookManager.register` skips registration of input hook classes. Also updated `__init__` to no longer skip creating the instance attributes, to prevent AttributeError exceptions at load time.
---
IPython/lib/inputhook.py | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/IPython/lib/inputhook.py b/IPython/lib/inputhook.py
index 4ae2cb3..6578365 100644
--- a/IPython/lib/inputhook.py
+++ b/IPython/lib/inputhook.py
@@ -107,8 +107,8 @@ class InputHookManager(object):
def __init__(self):
if ctypes is None:
warn("IPython GUI event loop requires ctypes, %gui will not be available")
- return
- self.PYFUNC = ctypes.PYFUNCTYPE(ctypes.c_int)
+ else:
+ self.PYFUNC = ctypes.PYFUNCTYPE(ctypes.c_int)
self.guihooks = {}
self.aliases = {}
self.apps = {}
@@ -197,10 +197,11 @@ def enable(self, app=None):
...
"""
def decorator(cls):
- inst = cls(self)
- self.guihooks[toolkitname] = inst
- for a in aliases:
- self.aliases[a] = toolkitname
+ if ctypes is not None:
+ inst = cls(self)
+ self.guihooks[toolkitname] = inst
+ for a in aliases:
+ self.aliases[a] = toolkitname
return cls
return decorator
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