Index: /trunk/cheesecake/cheesecake_index.py
===================================================================
--- /trunk/cheesecake/cheesecake_index.py (revision 170)
+++ /trunk/cheesecake/cheesecake_index.py (revision 172)
@@ -1125,8 +1125,28 @@
     """
     name = "pep8"
-    max_value = 0
+
+    #
+    # Max value is a number of possible pep8 errors times 2,
+    #   plus number of possible pep8 warnings.
+    #
+    # Currently pep8 module support 15 errors:
+    #   E101,
+    #   E111, E112, E113,
+    #   E201, E202, E203,
+    #   E211,
+    #   E221, E222,
+    #   E301, E302, E303,
+    #   E401,
+    #   E501
+    # and 4 warnings:
+    #   W191,
+    #   W291,
+    #   W601,
+    #   W602
+    #
+    max_value = 34
+
     error_score = -2
     warning_score = -1
-
 
     def compute(self, files_list, package_dir):
@@ -1145,9 +1165,13 @@
         error_stats = pep8.get_error_statistics()
         warning_stats = pep8.get_warning_statistics()
+
         errors = len(error_stats)
         warnings = len(warning_stats)
+
         total_error_score = self.error_score * errors
         total_warning_score = self.warning_score * warnings
+
         score = total_error_score + total_warning_score
+        self.value = self.max_value + score
 
         self.add_info("Errors:")
@@ -1163,7 +1187,6 @@
         self.add_info("pep8.py found %d warning types; we're scoring %d per warning type" % (warnings, self.warning_score))
         self.add_info("Warning score: %d" % total_warning_score)
-        self.add_info("Total pep8 score: %d" % score)
-
-        self.value = score
+        self.add_info("Total pep8 score: %d - %d = %d" % (self.max_value, abs(score), self.value))
+
         self.details = "pep8.py check: %d error types, %d warning types" % (errors, warnings)
         return self.value