Simplify timedelta.total_seconds

Author: tdadela

Lib/_pydatetime.py

@@ -784,8 +784,7 @@ def plural(n):
 
     def total_seconds(self):
         """Total seconds in the duration."""
-        return ((self.days * 86400 + self.seconds) * 10**6 +
-                self.microseconds) / 10**6
+        return self.days * 86400 + self.seconds + self.microseconds / 1000000
 
     # Read-only field accessors
     @property