Fix for issue 136

problog/debug.py

@@ -151,7 +151,7 @@ def show_profile(self, aggregate=0):
                 "location",
             )
             s += "-" * 100 + "\n"
-            for tm, key in sorted((t, k) for k, t in self.timestats.items()):
+            for tm, key in sorted(((t, k) for k, t in self.timestats.items()), key=lambda t: t[0]):
                 term, location = key
                 nb = self.resultstats[key]
                 cl = self.callstats[key]

problog/test/test_engine.py

@@ -18,6 +18,7 @@
 import random
 import unittest
 
+from problog.debug import EngineTracer
 from problog.engine import DefaultEngine
 from problog.logic import Term, Constant
 from problog.program import PrologString
@@ -227,6 +228,12 @@ def test_cycle_badcode(self):
                 self.edges, edges, msg="Test failed for random seed %s" % seed
             )
 
+def test_profile_equal_timing():
+    tracer = EngineTracer()
+    tracer.timestats[(Term('a'), 0)] = 0.000
+    tracer.timestats[(Term('b'), 1)] = 0.000
+    table = tracer.show_profile()
+
 
 def list_paths(source):
     names = dict(
@@ -265,3 +272,5 @@ def _list_paths(source, node_id, path):
             yield add
         else:  # Don't support negation for now
             raise Exception("Unexpected node type")
+
+

problog/version.py

@@ -1 +1 @@
-version = '2.2.8'
+version = '2.2.9'