human
Solve the following python programming problem given the following code:
def on_push_select(self, success, db_results) : 
    if ((not success) or (not db_results)) : 
        return self.send_error (500) 
pushrow = db_results.fetchone () 
    if (not pushrow) : 
        return self.send_error (500) 
if (pushrow [db.push_pushes.c.state] != 'accepting') : 
        return self.send_error (403) 
insert_queries = [db.push_pushcontents.insert ({ 
        'request' : int (i), 
        'push' : self.pushid, 
}) for i in self.request_ids] 
    update_query = db.push_requests.update ().where (SA.and_ (db.push_requests.c.id.in_ (self.request_ids), (db.push_requests.c.state == 'requested'))).values ({ 
        'state' : 'pickme', 
}) 
    request_query = db.push_requests.select ().where (db.push_requests.c.id.in_ (self.request_ids)) 
    condition_query = SA.select ([db.push_pushes, db.push_pushcontents], SA.and_ (db.push_pushcontents.c.request.in_ (self.request_ids), (db.push_pushes.c.id == db.push_pushcontents.c.push), (db.push_pushes.c.state != 'discarded'))) 
    def condition_fn(db_results) : 
        return (db_results.fetchall () == []) 
db.execute_transaction_cb ((insert_queries + [update_query, request_query]), self.on_db_complete, condition = (insert_queries, condition_fn)) 

    
    

    Fix the buggy line: db.execute_transaction_cb ((insert_queries + [update_query, request_query]), self.on_db_complete, condition = (insert_queries, condition_fn))
assistant
#Here is Python code to fix the buggy line: db.

db.execute_transaction_cb ((insert_queries + [update_query, request_query]), self.on_db_complete, condition = (condition_query, condition_fn))