2 files changed, 6 insertions, 1 deletions
diff --git a/fs/contrib/tahoelafs/util.py b/fs/contrib/tahoelafs/util.py
index d455edc..fda8a2b 100644
--- a/fs/contrib/tahoelafs/util.py
+++ b/fs/contrib/tahoelafs/util.py
@@ -16,7 +16,11 @@ try:
     # is not in standard CPython >=2.6 library.
     import simplejson as json
 except ImportError:
-    import json
+    try:
+        import json
+    except ImportError:
+        print "simplejson (http://pypi.python.org/pypi/simplejson/) required"
+        raise
     
 from .connection import Connection
 
diff --git a/tox.ini b/tox.ini
index eae4ef8..1d849a1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,6 +9,7 @@ deps=dexml
 	pyftpdlib
 
 [testenv:py25]
+deps = simplejson
 commands = nosetests -v \
 	[]