算法交易代码中的子句除外

Question

from ib.ext.Contract import Contract
from ib.ext.Order import Order
from ib.opt import Connection, message
#from ib.lib.overloading import overloaded
def make_contract(symbol, sec_type, exch, prim_exch, curr):
    contract = Contract()
    contract.m_symbol = symbol
    contract.m_secType = sec_type
    contract.m_exchange = exch
    contract.m_primaryExch = prim_exch
    contract.m_currency = curr
    return Contract
def make_order (action, quantity, price = None):
    if price is not None:
        order = Order()
        order.m_orderType = 'LMT'
        order.m_totalQuantity = qiantity
        order.m_action = action
        order.m_lmtPrice = price
    else:
        order = Order()
        order.m_orderType = 'MKT'
        order.m_totalQuantity = qiantity
        order.m_action = action
    return order
#def error_handler(msg):
    #print'Server Error: ',msg
#def server_handler(msg):
    #print'Server Msg: ',msg.typeName,'-',msg

def main():
    conn = Connection.create(port=7496, clientId=100) #clientID's given are 100 or 999 
    conn.connect()
    oid = 1
    cont = make_contract('TSLA', 'STK', 'SMART', 'SMART', 'USD')
    offer = make_order('BUY', 1) #or('BUY', 1, 200)
    conn.placeOrder(oid, cont, offer)
    conn.disconnect()

遇到此错误，不知道为什么我确定我正确安装了ibpy lib，但是如果我错了，请纠正我：）.........

  File "C:UsersHeraaizonDesktopIBPy_Test.py", line 1, in <module>
    from ib.ext.Contract import Contract

  File "C:UsersHeraaizonAppDataLocalProgramsPythonPython37-32libibextContract.py", line 9, in <module>
    from ib.lib.overloading import overloaded

  File "C:UsersHeraaizonAppDataLocalProgramsPythonPython37-32libiblib__init__.py", line 239
    except (socket.error, ), ex:
                           ^
SyntaxError: invalid syntax

Answer 1

except子句的语法在Python 2和Python 3之间发生了变化。

python 2：

except (socket.error, ), ex:

将在Python 3：

中

except (socket.error, ) as ex:

看来您的代码是为Python 2编写的。要么使用Python 2运行它，要么找到代码的更新版本。