--- a/paint/package.py	Fri Mar 30 14:18:09 2012 -0700
+++ b/paint/package.py	Fri Mar 30 14:24:20 2012 -0700
@@ -184,10 +184,19 @@
         return dependencies
 
     def extension(self):
-        """filename extension"""
-        raise NotImplementedError("TODO")
+        """filename extension of the package"""
+
+        package = self.package()
 
-    def repackage(self, destination=None):
+        # determine the extension (XXX hacky)
+        extensions = ('.tar.gz', '.zip', '.tar.bz2')
+        for ext in extensions:
+            if package.endsiwth(ext):
+                return ext
+
+        raise Exception("Extension %s not found: %s" % (extensions, package))
+
+    def package(self, destination=None):
         """
         repackage the package to ensure its actually in the right form
         and return the path to the destination
@@ -247,6 +256,7 @@
                 # full path
                 src = os.path.join(tempdir, package)
 
+                # make a package of the thing
                 package = Package(src)
 
                 # # get destination dirname, filename
@@ -282,7 +292,7 @@
             if sdist.filename.endswith(ext):
                 break
         else:
-            raise Exception("Extension %s not found: %s" % (extensions, sdist.filename))
+
 
         # get the filename destination
         filename = '%s-%s%s' % (info['name'], ext)