我正在调用一个运行python3命令的任务。我在main is called语句的第一行中添加了一条语句if __name__ == '__main__':。但是，此语句永远不会执行。我如何确保要调用该文件以及执行之前的所有其他操作？通过日志：
[2018-12-20 07:15:24,456] {bash_operator.py:87} INFO - Temporary script location: /tmp/airflowtmpah5gx32p/pscript_pclean_phlc9h6grzqdhm6sc0zrxjne_UdOgg0xdoblvr
[2018-12-20 07:15:24,456] {bash_operator.py:97} INFO - Running command: python3 /usr/local/airflow/rootfs/mopng_beneficiary_v2/scripts/pclean_phlc9h6grzqdhm6sc0zrxjne_UdOgg.py /usr/local/airflow/rootfs/mopng_beneficiary_v2/manual__2018-12-18T12:06:14+00:00/appended/euoEQHIwIQTe1wXtg46fFYok.csv /usr/local/airflow/rootfs/mopng_beneficiary_v2/external/5Feb18_master_ujjwala_latlong_dist_dno_so_v7.csv /usr/local/airflow/rootfs/mopng_beneficiary_v2/external/ppac_master_v3_mmi_enriched_with_sanity_check.csv /usr/local/airflow/rootfs/mopng_beneficiary_v2/manual__2018-12-18T12:06:14+00:00/pcleaned/Qc01sB1s1WBLhljjIzt2S0Ex.csv
[2018-12-20 07:15:24,467] {bash_operator.py:106} INFO - Output: