Skip over strategies that don't provide a strict subset of the ArgSchema.

Signed-off-by: Evan Broder <broder@mit.edu>

diff --git a/wizard/install/__init__.py b/wizard/install/__init__.py
index 8ca40a30103e6a8250473fda9b7c39fb4eb0b456..42dcce5cd1bc263f9731c3d286841b9b2a3d6c12 100644 (file)
--- a/wizard/install/__init__.py
+++ b/wizard/install/__init__.py
@@ -348,6 +348,8 @@ class ArgSchema(object):
         if missing:
             raise MissingRequiredParam(missing)
         for strategy in self.strategies:
+            if any(not hasattr(options, name) for name in strategy.provides):
+                continue
             if all(getattr(options, name) is not None for name in strategy.provides):
                 continue
             for name in strategy.provides: