pythoninteractive-brokerstws

IBRK TWS API error() takes 4 positional arguments but 5 were given

If I run a basic TWS example, I receive the error message . If I comment out the error() call back it runs fine. I've tried this on several examples and get the same result.

    Exception has occurred: TypeError
    
    error() takes 4 positional arguments but 5 were given
    
    File "/Users/jayurbain/Dropbox/twsapi/Algorithmic Trading using Interactive Broker's 
    Python API /ib_basic_app.py", line 20, in <module> app.run()

Please advise.

Here's the call back that is being overridden in wrapper.py:

    def error(self, reqId:TickerId, errorCode:int, errorString:str, advancedOrderRejectJson = ""):

Here is the entire code:

from ibapi.client import EClient
from ibapi.wrapper import EWrapper
 
class TradingApp(EWrapper, EClient):
    def __init__(self):
        EClient.__init__(self,self)
        
    def error(self, reqId, errorCode, errorString):
        print("Error {} {} {}".format(reqId,errorCode,errorString))
 
app = TradingApp()      
app.connect("127.0.0.1", 7497, clientId=1)
app.run()
Solution

  • The solution to the problem was to execute python setup install rather than using pip to install ibapi. Thanks for your answers.