From f6bb5b2b776dd7aaca52bf7ba0d48ca571bb167e Mon Sep 17 00:00:00 2001
From: Lance Edgar <lance@edbob.org>
Date: Tue, 27 Nov 2012 14:33:23 -0800
Subject: [PATCH] raise InvalidSpec if no colon

---
 edbob/exceptions.py | 6 ++++++
 edbob/modules.py    | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/edbob/exceptions.py b/edbob/exceptions.py
index a5a802e..58da82f 100644
--- a/edbob/exceptions.py
+++ b/edbob/exceptions.py
@@ -73,6 +73,12 @@ class LoadSpecError(Exception):
         return None
 
 
+class InvalidSpec(LoadSpecError):
+
+    def specifics(self):
+        return "invalid spec"
+
+
 class ModuleMissingAttribute(LoadSpecError):
     """
     Raised during :func:`edbob.load_spec()` when the module imported okay but
diff --git a/edbob/modules.py b/edbob/modules.py
index e3d4287..2cdf59b 100644
--- a/edbob/modules.py
+++ b/edbob/modules.py
@@ -82,6 +82,9 @@ def load_spec(spec):
     necessary.
     """
 
+    if spec.count(':') != 1:
+        raise exceptions.InvalidSpec(spec)
+
     module_path, obj = spec.split(':')
     module = import_module_path(module_path)
     try: