setup: don't catch all Exception from check_requirement(), but only PackagingError...

I noticed this because I had accidentally inserted a bug which caused AssertionError to be raised from check_requirement().

diff --git a/src/allmydata/__init__.py b/src/allmydata/__init__.py
index 6bb20d81a169a16824d29f0afcdbeace4e35c512..c404276ceb80fa4309d9e3097c51cf749a6bdbcf 100644 (file)
--- a/src/allmydata/__init__.py
+++ b/src/allmydata/__init__.py
@@ -373,7 +373,7 @@ def check_all_requirements():
     for requirement in install_requires:
         try:
             check_requirement(requirement, vers_and_locs)
-        except Exception, e:
+        except (ImportError, PackagingError), e:
             errors.append("%s: %s" % (e.__class__.__name__, e))
 
     if errors: