1 files changed, 13 insertions, 0 deletions
diff --git a/qtip/base/error.py b/qtip/base/error.py
index d364c532..01a7f7a6 100644
--- a/qtip/base/error.py
+++ b/qtip/base/error.py
@@ -21,3 +21,16 @@ class NotFound(QtipError):
     def __init__(self, module, package='qtip'):
         self.package = package
         self.module = module
+
+
+class ToBeDoneError(QtipError):
+    """something still to be done"""
+    def __init__(self, method, module):
+        self.method = method
+        self.module = module
+
+
+def make_tbd(method, module='qtip'):
+    def tbd():
+        raise ToBeDoneError(method, module)
+    return tbd