[packagedb-cli: 17/18] Make sure we never return None when we expect a dictionary

[Pierre-YvesChibon]

commit c66ded00c72eb3c310fb977400912f2c39114adf
Author: Pierre-Yves Chibon <pingou(a)pingoured.fr&gt;
Date:   Wed Dec 2 15:52:28 2015 +0100

    Make sure we never return None when we expect a dictionary
    
    Fixes https://github.com/fedora-infra/packagedb-cli/issues/34

 pkgdb2client/__init__.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/pkgdb2client/__init__.py b/pkgdb2client/__init__.py
index a4743c9..d21b654 100644
--- a/pkgdb2client/__init__.py
+++ b/pkgdb2client/__init__.py
@@ -360,6 +360,9 @@ class PkgDB(object):
                     'No output returned by %s' % response.url)
             else:
                 raise PkgDBException(output)
+        elif output is None:
+            raise PkgDBException(
+                'No output returned by %s' % response.url)
 
         return output