Actually implement exclusion.

1 files changed, 4 insertions, 4 deletions

diff --git a/summainlib.py b/summainlib.py
index 3ba8529..44c32ff 100644
--- a/summainlib.py
+++ b/summainlib.py
@@ -162,7 +162,7 @@ class FilesystemObject(object):
     def __init__(self, filename, nn, pn, exclude, stat_result=None, sha1=None,
                  open_file=None, readlink=None):
         self._filename = filename
-        self._exclude = exclude
+        self._exclude = set(exclude)
         self._pn = pn
         self._nn = nn
         self._sha1 = sha1 or hashlib.sha1()
@@ -233,15 +233,15 @@ class FilesystemObject(object):
         f.close()
         return sha1.hexdigest()
 
-    def __setitem__(self, key, value):
-        self.values[key] = value
-        
     def _normalize_key(self, key):
         key = key.lower()
         key = '_'.join(key.split('-'))
         return key
         
     def __getitem__(self, key):
+        normalized = self._normalize_key(key)
+        if normalized in self._exclude:
+            return ''
         if key not in self.values:
             method = '_compute_%s' % self._normalize_key(key)
             if hasattr(self, method):