fix: 修复提取时间异常

data_clean/handle/company_court_open_announcement.py

@@ -57,6 +57,8 @@ async def _get_max_establish_date(company_ids: list):
     company_ids = [i for i in company_ids if i]
     res = await bulk_get('ng_rt_company', company_ids)
     res = [str_2_date_time(i['ESTIBLISH_TIME']) for i in res if 'ESTIBLISH_TIME' in i and i['ESTIBLISH_TIME']]
+    if not res:
+        return None
     return max(res)
     pass