# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1431878409 -7200
# Node ID 74d2f393ad9d6579c4094a2c1f4ec654bd64dc2d
# Parent  a5e8c1027e599d1be6fdb098bfb9de59a00553e5
Removed special comparison callable for period sorting.

diff -r a5e8c1027e59 -r 74d2f393ad9d imiptools/data.py
--- a/imiptools/data.py	Sun May 17 17:59:06 2015 +0200
+++ b/imiptools/data.py	Sun May 17 18:00:09 2015 +0200
@@ -492,7 +492,7 @@
 
     # Return a sorted list of the periods.
 
-    periods.sort(cmp=compare_periods(tzid))
+    periods.sort()
 
     # Exclude exception dates.
 
@@ -510,19 +510,6 @@
 
     return periods
 
-class compare_periods:
-
-    "Compare periods for exception date purposes."
-
-    def __init__(self, tzid):
-        self.tzid = tzid
-
-    def __call__(self, first, second):
-        return cmp(
-            (to_datetime(first.get_start(), self.tzid), to_datetime(first.get_end(), self.tzid)),
-            (to_datetime(second.get_start(), self.tzid), to_datetime(second.get_end(), self.tzid))
-            )
-
 def get_periods_for_freebusy(obj, periods, tzid):
 
     """