diff --git a/pisi/blacklist.py b/pisi/blacklist.py
new file mode 100644
index 00000000..172f995d
--- /dev/null
+++ b/pisi/blacklist.py
@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2008, TUBITAK/UEKAE
+#
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or (at your option)
+# any later version.
+#
+# Please read the COPYING file.
+#
+
+import os
+import fnmatch
+
+import pisi.db
+
+def exclude_from(packages, exfrom):
+
+    if not os.path.exists(exfrom):
+        return packages
+
+    patterns = []
+    if os.path.exists(exfrom):
+        for line in open(exfrom, "r").readlines():
+            if not line.startswith('#') and not line == '\n':
+                patterns.append(line.strip())
+        if patterns:
+            return exclude(packages, patterns)
+
+    return packages
+
+def exclude(packages, patterns):
+    packages = set(packages)
+    componentdb = pisi.db.componentdb.ComponentDB()
+    
+    for pattern in patterns:
+        # match pattern in package names
+        match = fnmatch.filter(packages, pattern)
+        packages = packages - set(match)
+
+        if not match:
+            # match pattern in component names
+            for compare in fnmatch.filter(componentdb.list_components(), pattern):
+                packages = packages - set(componentdb.get_union_packages(compare, walk=True))
+
+    return list(packages)