当我尝试从远程 Web 服务获取方法时,它给了我错误。
我的代码是:
portion=10
start=0
print self.stamp.datetime
client=self.client
while 1:
print 'getting ids...........'
fresh_ids=client.service.GetTopicsIDsUpdatedAfterDateTime(self.stamp.datetime,start,portion) #this line makes exception
if len(fresh_ids) is not 0:
for id in fresh_ids:
yield id
start=+portion
else:
print 'No updated topics anymore'
sys.exit()
有追溯:
/usr/lib/python2.5/site-packages/suds-0.3.5-py2.5.egg/suds/client.py
in invoke(self, args, kwargs)
469 binding = self.method.binding.input
470 binding.options = self.options
--> 471 msg = binding.get_message(self.method, args, kwargs)
472 timer.stop()
473 metrics.log.debug(
/usr/lib/python2.5/site-packages/suds-0.3.5-py2.5.egg/suds/bindings/binding.py
in get_message(self, method, args, kwargs)
96 content = self.headercontent(method)
97 header = self.header(content)
---> 98 content = self.bodycontent(method, args, kwargs)
99 body = self.body(content)
100 env = self.envelope(header, body)
/usr/lib/python2.5/site-packages/suds-0.3.5-py2.5.egg/suds/bindings/rpc.py
in bodycontent(self, method, args, kwargs)
61 p = self.mkparam(method, pd, value)
62 if p is not None:
---> 63 root.append(p)
64 n += 1
65 return root
/usr/lib/python2.5/site-packages/suds-0.3.5-py2.5.egg/suds/sax/element.py
in append(self, objects)
329 child.parent = self
330 continue
--> 331 raise Exception('append %s not-valid' %
child.__class__.__name__)
332 return self
333
<type 'exceptions.Exception'>: append list not-valid
suds
模块中有一个引发异常的方法:
def insert(self, objects, index=0):
"""
Insert an L{Element} content at the specified index.
@param objects: A (single|collection) of attribute(s) or element(s)
to be added as children.
@type objects: (L{Element}|L{Attribute})
@param index: The position in the list of children to insert.
@type index: int
@return: self
@rtype: L{Element}
"""
objects = (objects,)
for child in objects:
if isinstance(child, Element):
self.children.insert(index, child)
child.parent = self
else:
raise Exception('append %s not-valid' % child.__class__.__name__)
return self
在控制台中一切都很顺利。我被困住了。
好的,我试着做一个实验:
def YieldID(self):
portion=10
start=0
print self.stamp.datetime
fresh_ids=self.client.service.GetTopicsIDsUpdatedAfterDateTime(self.stamp.datetime,start,portion) #This work
while 1:
print 'getting ids...........'
fresh_ids=self.client.service.GetTopicsIDsUpdatedAfterDateTime(self.stamp.datetime,start,portion) # This raise exception
if len(fresh_ids)!=0:
for id in fresh_ids:
yield id
start=+portion
else:
print 'No updated topics anymore'
sys.exit()
我在 WHILE 结束之前添加了对相同方法的调用。但是当它进入里面时给了我一个例外。
它如何在循环之前工作,而不是在循环内工作?这是主要问题。发生了什么变化?
我什至尝试更改while
为for
.