move files

programs/utils.py

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+import datetime
+
+def to_timedelta (time):
+    """
+    Transform a datetime or a time instance to a timedelta,
+    only using time info
+    """
+    return datetime.timedelta(
+        hours = time.hour,
+        minutes = time.minute,
+        seconds = time.second
+    )
+
+def seconds_to_time (seconds):
+    """
+    Seconds to datetime.time
+    """
+    minutes, seconds = divmod(seconds, 60)
+    hours, minutes = divmod(minutes, 60)
+    return datetime.time(hour = hours, minute = minutes, second = seconds)
+
+def time_sum (times):
+    """
+    Sum up a list of time elements
+    """
+    seconds = sum([ time.hour * 3600 + time.minute * 60 + time.second
+                    for time in times ])
+    return seconds_to_time(seconds)
+
+