Group by hour in SQLAlchemy?

Question

How do I group query results by the hour part of a datetime column in SQLAlchemy?

Answer 1

You can also do it in Python. Assuming you have an ordered query_result :

from itertools import groupby

def grouper( item ): 
    return item.created.hour
for ( hour, items ) in groupby( query_result, grouper ):
    for item in items:
        # do stuff

This answer is adapted from an answer to a similar question here