weird error TypeError: __call__() got an unexpected keyword argument 'data'

Shaoqiang Ran



  File "/Users/django/Documents/inv/xsk/venv/lib/python3.9/site-packages/backtrader/strategy.py", line 309, in _oncepost
    self.next()
  File "/Users/django/Documents/inv/xsk/xsk_strategy/zigzag_ema.py", line 72, in next
    self.order_target_percent(self.datas[0], self.p.max_position)
  File "/Users/django/Documents/inv/xsk/venv/lib/python3.9/site-packages/backtrader/strategy.py", line 1376, in order_target_percent
    return self.order_target_value(data=data, target=target, **kwargs)
  File "/Users/django/Documents/inv/xsk/venv/lib/python3.9/site-packages/backtrader/strategy.py", line 1322, in order_target_value
    return self.buy(data=data, size=size, price=price, **kwargs)
TypeError: __call__() got an unexpected keyword argument 'data'

when i run strategy's buy function i got this error, i go into the source code and cannot find anything wrong.

here is the calling statement

  if target > value:
                size = comminfo.getsize(price, target - value)
                return self.buy(data=data, size=size, price=price, **kwargs)

and here is buy function:

  def buy(self, data=None,
            size=None, price=None, plimit=None,
            exectype=None, valid=None, tradeid=0, oco=None,
            trailamount=None, trailpercent=None,
            parent=None, transmit=True,
            **kwargs):

it's really weird, can some one help solve this ?

Lennie

I'm going to guess that you are missing the self object as in
data=self.data

Shaoqiang Ran

@Lennie ```
if self.buy[0]: # 买入
self.show_status()
if port_perc <= 0:
self.order_target_percent(self.datas[0], self.p.max_position)

this is my calling statement