当我试图从一个包含包含类名、文件名和“depend\u task”类的变量的列表中创建Luigi任务类时,我得到了上面的运行时错误。在
问题是类定义应该包括同时定义的“depend_task”类的定义。下面是我失败的尝试和错误消息。在
感谢您的帮助。在
class BDX_Query_0XX(SQLTask):
acctDate = luigi.Parameter()
ssisDate = luigi.Parameter()
runDesc = luigi.Parameter()
def __init__(self, *args, **kwargs):
super(BDX_Query_0XX, self).__init__(*args, **kwargs)
# if self.trans_id is None:
self.trans_id = "00902_BDX_Query_0XX" + "__" + self.runDesc # static.
def run(self):
YY = self.acctDate[:4]
MM = self.acctDate[4:6]
acctDate = self.acctDate
ssisDate = self.ssisDate
runDesc = self.runDesc
bdx_sql = r'r:\\1.SQL\\BDX_SQL\\'
cmdList = [
('BDX010',f'{bdx_sql}BDX_001_NI_DM 010.sql -o output010.txt',None),
('BDX020',f'{bdx_sql}BDX_001_NI_DM 020.sql -o output020.txt','BDX010'),
('BDX022a',f'{bdx_sql}BDX_022_P038_All_Final_CatAdj 010.sql -o output022a.txt','BDX020'),
('BDX022b',f'{bdx_sql}BDX_022_P038_All_Final_CatAdj 020.sql -o output022b.txt -v Year1={YY} MM={MM}','BDX022a'),
('BDX022c',f'{bdx_sql}BDX_022_P038_All_Final_CatAdj 030.sql -o output022c.txt -v Year={YY} Month={MM}', 'BDX022b'),
('BDX023',f'{bdx_sql}BDX_023_P031_MTD_All_Final_CatAdj.sql -o output023.txt ','BDX020'),
('BDX024',f'{bdx_sql}BDX_024_P031_ITD_All_Final_CatAdj.sql -o output024.txt','BDX020'),
('BDX025a',f'{bdx_sql}BDX_025_P038_All_Final_CatAdj 010.sql -o output025a.txt','BDX020'),
('BDX025b',f'{bdx_sql}BDX_025_P038_All_Final_CatAdj 020.sql -o output025b.txt -v Year={YY} Month={MM}','BDX025a'),
('BDX025c',f'{bdx_sql}BDX_025_P038_All_Final_CatAdj 030.sql -o output025c.txt -v YYMM={acctDate}','BDX025b')
]
tasks = []
for queryKey, queryCmd, dependQry in cmdList:
class_name = queryKey
klass = type(queryKey, (BDX_Task,),{})
**#>>>> ERROR OCCURS IN THE FOLLOWING LINE >>>>>>>**
tasks.append(klass(acctDate=self.acctDate, ssisDate =self.ssisDate, queryKey = queryKey, queryCmd = queryCmd, runDesc = self.runDesc, dependQry = dependQry)) # this addes Task class named after queryKey to dependency
yield tasks
self.get_target().touch()
class BDX_Task_Base(SQLTask):
acctDate = luigi.Parameter()
ssisDate = luigi.Parameter(default=None)
queryKey = luigi.Parameter()
queryCmd = luigi.Parameter()
runDesc = luigi.Parameter()
dependQry = luigi.Parameter()
def __init__(self, *args, **kwargs):
super(BDX_Task_Base, self).__init__(*args, **kwargs)
# if self.trans_id is None:
self.trans_id = f"00903_BDX_Query_{self.queryKey}__{self.runDesc}"
class BDX_Task(BDX_Task_Base):
def requires(self):
dependQry = self.dependQry
if dependQry:
if type(dependQry) is str: # class name in string, then convert to SQLTask here;
depend_class= type(dependQry, (BDX_Task_Base,), {} )
depend_task = [depend_class(acctDate = self.acctDate,ssisDate = self.ssisDate, queryKey = self.queryKey, queryCmd = self.queryCmd, runDesc = self.runDesc, dependQry = self.dependQry)]
else:
depend_task =[dependQry(acctDate= self.acctDate, ssisDate = self.ssisDate,queryKey = self.queryKey, queryCmd = self.queryCmd, runDesc = self.runDesc, dependQry = self.dependQry)]
else: #class itself
depend_task = []
return depend_task
def run(self):
print(subprocess.call(self.queryCmd, shell=True))
self.get_target().touch()
全堆栈跟踪
^{pr2}$
BDX_Task
是BDX_Task_Base
的子类。在BDX_Task_Base
的初始化中,有一个对super(BDX_Task)
的调用。。。它是BDX_Task_Base
,因此它再次运行init,它将再次调用super(BDX_Task)
,依此类推。我假设您打算编写super(BDX_Task_Base)...
,这不会导致无限递归。只要您使用的是最新版本的python,super().__init__(...)
将执行与super(BDX_Task_Base, self).__init__(...)
相同的操作。在相关问题 更多 >
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