Index crawling. Raise an exception when no release match the given requirements.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/distutils2/index/xmlrpc.py b/src/distutils2/index/xmlrpc.py
index fd1b62f..aef2662 100644
--- a/src/distutils2/index/xmlrpc.py
+++ b/src/distutils2/index/xmlrpc.py
@@ -3,7 +3,8 @@ import xmlrpclib
 
 from distutils2.errors import IrrationalVersionError
 from distutils2.index.base import BaseClient
-from distutils2.index.errors import ProjectNotFound, InvalidSearchField
+from distutils2.index.errors import (ProjectNotFound, InvalidSearchField,
+                                     ReleaseNotFound)
 from distutils2.index.dist import ReleaseInfo
 from distutils2.version import get_version_predicate
 
@@ -97,6 +98,8 @@ class Client(BaseClient):
                                               index=self._index)
                                   for version in versions])
         project = project.filter(predicate)
+        if len(project) == 0:
+            raise ReleaseNotFound("%s" % predicate)
         project.sort_releases(prefer_final)
         return project