# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1505767738 -7200
# Node ID 4997a1dc6e66dda0b95dec7a296b14c839b59c93
# Parent  08a85ebe2399dd30c19cca004c957bcb1c53a637
Combined functions by eliminating superfluous set operations.

diff -r 08a85ebe2399 -r 4997a1dc6e66 imipweb/data.py
--- a/imipweb/data.py	Mon Sep 18 20:36:45 2017 +0200
+++ b/imipweb/data.py	Mon Sep 18 22:48:58 2017 +0200
@@ -495,21 +495,6 @@
 
     """
     Using the 'updated_periods', being a list of (stored, current) periods,
-    return a tuple containing collections of new, changed, unchanged, removed
-    periods.
-    """
-
-    new, changed, unchanged, removed = get_changed_periods(updated_periods)
-
-    changed = set(changed).difference(removed)
-    unchanged = set(unchanged).difference(removed)
-
-    return new, list(changed), list(unchanged), removed
-
-def get_changed_periods(updated_periods):
-
-    """
-    Using the 'updated_periods', being a list of (stored, current) periods,
     return a tuple containing collections of new, changed, unchanged and removed
     periods.