我怀疑这对我来说是一种klugefest，但我正在使用Luigi和Sciluigi模块，这些模块设置了许多关键参数，在init之前返回'self'。如果我在自我返回后尝试对这些参数进行处理，那么Luigi.Parameter对象会以这样的方式掩盖它们，以至于我无法做我需要做的事情。
luigi和sciluigi类（使用它们）不包含__init__。如果我尝试插入__init__或调用super(ChildClass, self).__init__(*args, **kwargs) ...我会收到奇怪的错误'意外参数'错误。
所以Sciluigi课程看起来像这样......
class MyTask(sciluigi.task):
param1 = sciluigi.Parameter(default='Yes') #String only
param2 = sciluigi.Parameter(default='No') #String only
def out_target(self):
return sciluigi.TargetInfo(self, self.out)
def run(self):
with self.out_target().open('w') as foofile:
foofile.write('foo\n')
所以...我希望我可以通过setattr PRIOR动态设置一些参数，实际返回'self'。但是setattr需要这个对象。
我希望我能做点像......
setattr(inspect.stack()[?][?], 'DynamicVar', sciluigi.Parameter(default='Yes') )
好吧，我不确定哪些信息最有帮助。
第一个问题是;我无法添加init。实际代码如下，添加了__init__方法。如果我尝试运行它，我已经包含了结果错误。它是同样的错误，如果我运行超级调用__init__
class FileConverter(sciluigi.Task):
"""
"""
in_target = None # Mandatory
out = sciluigi.Parameter() # <file>
exepath = sciluigi.Parameter(default = "")
def __init__(self):
self.var = 'anything'
def out_target(self):
log.debug("In 'FileConverter.out_target'... ")
return sciluigi.TargetInfo(self, self.out)
def run(self):
result = None
command = ''.join([
self.exepath, _slash, "FileConverter ",
" -in ", self.in_target().path,
" -out ", self.out_target().path,
" -out_type ", self.file_type
])
log.info("RUNNING COMMAND: " + command)
result = self.ex(command)
log.info("result: " + result[1])
2017-02-24 17:01:48 | WARNING | Will not run MyWorkflow(instance_name=sciluigi_workflow) or any dependencies due to error in deps() method:
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/luigi/worker.py", line 697, in _add
deps = task.deps()
File "/Library/Python/2.7/site-packages/luigi/task.py", line 572, in deps
return flatten(self._requires())
File "/Library/Python/2.7/site-packages/luigi/task.py", line 544, in _requires
return flatten(self.requires()) # base impl
File "/Library/Python/2.7/site-packages/sciluigi/workflow.py", line 105, in requires
workflow_output = self.workflow()
File "/Users/mikes/Documents/Eclipseworkspace/Bioproximity/OpenMS-Python-Luigi/site-packages/Bioproximity/sciluigi_tasks/PipelineTest1.py", line 33, in workflow
exepath = "/Applications/OpenMS-2.1.0/TOPP"
File "/Library/Python/2.7/site-packages/sciluigi/workflow.py", line 145, in new_task
newtask = sciluigi.new_task(instance_name, cls, self, **kwargs)
File "/Library/Python/2.7/site-packages/sciluigi/task.py", line 37, in new_task
newtask = cls.from_str_params(kwargs)
File "/Library/Python/2.7/site-packages/luigi/task.py", line 412, in from_str_params
return cls(**kwargs)
File "/Library/Python/2.7/site-packages/luigi/task_register.py", line 99, in __call__
h[k] = instantiate()
File "/Library/Python/2.7/site-packages/luigi/task_register.py", line 80, in instantiate
return super(Register, cls).__call__(*args, **kwargs)
TypeError: __init__() got an unexpected keyword argument 'instance_name'
如果我等待自己回来，我再也无法区分（例如使用上面的代码）......
in_target = None # Mandatory
out = sciluigi.Parameter() # <file>
如果我执行type(out)，则键入报告参数只是一个字符串（而不是sciluigi.Parameter对象），所以如果我尝试使用`instsinstance（out，sciluigi.Parameter）...返回False。
我需要能够动态地（以编程方式）设置sciluigi.Parameter对象，然后能够区分sciluigi.Parameter（）对象变量（如out）和“真实”str（）对象（如in_target）
我希望这是有道理的。
答案 0 :(得分：0)
接受并默默地丢弃构造函数中的参数，如下所示：
class FileConverter(sciluigi.Task):
def __init__(self, *_args, **_kwargs):
self.var = 'anything'
答案 1 :(得分：0)
仅供将来参考，回答孤立的问题，“如何...
setattr(<thisClassObject>, 'DynamicVar', sciluigi.Parameter(default='Yes') )
是否使用内置locals()功能。即。
locals()['DynamicVar'] = sciluigi.Parameter(default='Yes') #String only
这是我如何解决我的特殊kluge的片段;）
import sciluigi
class MyFooWriter(sciluigi.Task):
locals()['outfile'] = sciluigi.Parameter(default='./foo.txt') #String only
locals()['normalvar'] = 'Normalstring'
print "pre-self-returned outfile type =", type(outfile)
print "pre-self-returned normalvar type =", type(normalvar)
# locals()['param1'] =
def out_foo(self):
# raw_input("Enter...")
return sciluigi.TargetInfo(self, self.outfile)
def run(self):
print "self.outfile type =", type(self.outfile)
print "self.normalvar type =", type(self.normalvar)
# raw_input("Enter...")
with self.out_foo().open('w') as foofile:
foofile.write('foo\n')
class MyWorkflow(sciluigi.WorkflowTask):
def workflow(self):
print 'Starting workflow...'
foowriter = self.new_task('foowriter', MyFooWriter, outfile = 'testfile.txt')
return foowriter
if __name__ == '__main__':
sciluigi.run_local(main_task_cls=MyWorkflow)
pre-self-returned outfile type = <class 'sciluigi.parameter.Parameter'>
pre-self-returned normalvar type = <type 'str'>
Starting workflow...
2017-02-27 12:08:37 | INFO | --------------------------------------------------------------------------------
2017-02-27 12:08:37 | INFO | SciLuigi: MyWorkflow Workflow Started (logging to log/workflow_myworkflow_started_20170227_110837_278707.log)
2017-02-27 12:08:37 | INFO | --------------------------------------------------------------------------------
2017-02-27 12:08:37 | INFO | Task foowriter started
self.outfile type = <type 'str'>
self.normalvar type = <type 'str'>
2017-02-27 12:08:37 | INFO | Task foowriter finished after 0.001s
Starting workflow...
2017-02-27 12:08:37 | INFO | --------------------------------------------------------------------------------
2017-02-27 12:08:37 | INFO | SciLuigi: MyWorkflow Workflow Finished (workflow log at log/workflow_myworkflow_started_20170227_110837_278707.log)
2017-02-27 12:08:37 | INFO | --------------------------------------------------------------------------------