如何在Airflow操作符中的Airflow XCom_pull值上应用Python函数

我有一个需求，需要通过SQLsensor操作符捕获XCOM响应，并应用一些python命令来更改数据格式

我拥有的代码如下所示：-

delta_sql_sensor_task = SqlSensor( 
    task_id= "Verify-Completion-of-Delta-Job", 
    poke_interval= 10, 
    timeout=100,
    conn_id="lct_statedb",
    #gobal_id_list="{{ str(ti.xcom_pull(key='id_list', task_ids=['hook_task'])).replace('[','') }}",
    sql="SELECT COALESCE ( (SELECT count(*)  FROM lct_transformation_history WHERE deltaload_transformation_status is not null AND fullload_transformation_status is not null AND category='sites' AND id in (" + "{{ (ti.xcom_pull(key='id_list', task_ids=['hook_task'])) }}" + ") group by category),0) AS TRIGGER;",
    trigger_rule='one_failed',
    dag=dag)

我从代码{{ti.xcom\u pullkey='id\u list'，task\u id=['hook\u task'].str}}收到的响应为['13'，]，但我需要将响应更改为'13'

以下是我尝试过的选项：-

delta_sql_sensor_task = SqlSensor( 
    task_id= "Verify-Completion-of-Delta-Job", 
    poke_interval= 10, 
    timeout=100,
    conn_id="lct_statedb",
    #gobal_id_list="{{ str(ti.xcom_pull(key='id_list', task_ids=['hook_task'])).replace('[','') }}",
    sql="SELECT COALESCE ( (SELECT count(*)  FROM lct_transformation_history WHERE deltaload_transformation_status is not null AND fullload_transformation_status is not null AND category='sites' AND id in (" + "{{ (ti.xcom_pull(key='id_list', task_ids=['hook_task'])) }}" + ") group by category),0) AS TRIGGER;",
    trigger_rule='one_failed',
    dag=dag)

我尝试将xcom_pull响应存储在全局变量gobal_id_列表中，并应用Python函数，但没有成功。 我还尝试在SQL变量中应用Python运算符，如下所示，但运气不佳，代码如下所示：- sql=SELECT COALESCE SELECT count*FROM lct_transformation_历史记录，其中deltaload_transformation_状态不为null，fullload_transformation_状态不为null，category='sites'和id位于+{{strti.xcom_pullkey='id_list'，task_id=['hook_task']。替换'['，.replace']，.replace，.replace，.replace'，}}+按类别分组，0作为触发器；，。 期待有价值的投入。

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谢谢。

我已经用以下解决方案解决了我的问题，因为我的Xcom响应是在tuple&list中，因此我通过下面给出的代码更改解决了问题：-

"{{ (ti.xcom_pull(key='id_list', task_ids=['hook_task'])).str()[0][0][0] }}

它给了我期望的结果，我期望的是13