Django snippets

def no_style():
    """Returns a Django Style object that has no colors."""
    class dummy(object):
        def __getattr__(self, attr):
            return lambda x: x
    return dummy()

def clear_tables(*flush_tables):
    from django.db import connection, transaction
    cursor = connection.cursor()
    statements = connection.ops.sql_flush(no_style(), 
                                          flush_tables, 
                                          connection.introspection.sequence_list())
    for statement in statements:
        cursor.execute(statement)
        transaction.commit_unless_managed()