Add Stopwatch.start_stop_seconds(), don't use timedelta.total_seconds().

This function is only available in Python >= 2.7. On

  http://docs.python.org/library/datetime.html#timedelta-objects

it says total_seconds() is equal to

  (td.microseconds + (td.seconds + td.days * 24 * 3600) * 10**6) / 10**6

with true division enabled. We are using

  td.days * 24 * 3600 +
  td.seconds +
  operator.truediv(td.microseconds, 10**6)

now in Stopwatch.start_stop_seconds(), which I find more readable.

1 files changed, 8 insertions, 0 deletions

diff --git a/morphlib/stopwatch.py b/morphlib/stopwatch.py
index bcdc9291..492738d5 100644
--- a/morphlib/stopwatch.py
+++ b/morphlib/stopwatch.py
@@ -14,6 +14,8 @@
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 
+import operator
+
 from datetime import datetime
 
 
@@ -48,3 +50,9 @@ class Stopwatch(object):
     def start_stop_delta(self, reference_object):
         return (self.stop_time(reference_object) - 
                 self.start_time(reference_object))
+
+    def start_stop_seconds(self, reference_object):
+        delta = self.start_stop_delta(reference_object)
+        return (delta.days * 24 * 3600 +
+                delta.seconds +
+                operator.truediv(delta.microseconds, 10**6))