Python无限While循环不一致

问题描述

我用Python编写的无限循环代码第一次运行良好。但是，它在第​​二次运行时给出以下消息：

回溯（最近通话最近）： 文件“ C：/Users/dell/PycharmProjects/pythonProject/main.py”，第27行，在 符号= str（符号） TypeError：“元组”对象不可调用

有什么想法为什么我第二次跑步后没有收到此消息？

from xlrd import open_workbook
import win32com.client as win32
from oandapyV20.contrib.requests import MarketOrderRequest
from oandapyV20.contrib.requests import TakeProfitDetails,StopLossDetails
import oandapyV20.endpoints.orders as orders
import oandapyV20
from oandapyV20 import API
import oandapyV20.endpoints.accounts as accounts
import oandapyV20.endpoints.pricing as pricing
import oandapyV20.endpoints.positions as positions
import easygui
import tkinter as tk
import time

while True:
    time.sleep(5)
    excel = win32.gencache.EnsureDispatch('Excel.Application')
    for wb in excel.Workbooks:
        if wb.Name == 'forex2.xlsx':
            wb.Save()

    wb = open_workbook('C:/Users/dell/Documents/forex2.xlsx')

    xl_sheet = wb.sheet_by_index(0)
    marginrate = xl_sheet.cell(1,2)
    symbol = xl_sheet.cell(1,1)
    symbol = str(symbol)
    marginrate = str(marginrate)
    symbol = symbol.replace("text:","")
    marginrate = 20
    symbol = symbol.replace("'","")
    print("Symbol:",symbol)
    print("Margin Rate:",marginrate)

    access_token = "XXXX"
    accountID = "XXXX"
    client = API(access_token=access_token)

    r = accounts.AccountDetails(accountID)
    client.request(r)
    dict = r.response

    params = {"instruments": symbol}
    r2 = pricing.PricingInfo(accountID=accountID,params=params)
    rv2 = client.request(r2)
    a = list(rv2.items())[1][1][0]
    ask = float(a['closeoutAsk'])
    print("Starting Ask:",ask)

    a = list(dict.items())[0][1]
    marginUsed = float(list(a.items())[25][1])
    marginAvailable = float(list(a.items())[26][1])
    balance = float(list(a.items())[9][1])
    print("Margin Available:",marginAvailable)
    print("Balance:",balance)
    print("Margin Used + Margin Available:",balance)

    STOP_LOSS = .001
    TAKE_PROFIT = 100000
    units0 = round((marginrate * marginAvailable) / ask * .95)
    print("Order Units:",units0)

    mktOrder = MarketOrderRequest(
        instrument=symbol,units=units0,takeProfitOnFill=TakeProfitDetails(price=TAKE_PROFIT).data,stopLossOnFill=StopLossDetails(price=STOP_LOSS).data)

    r = orders.OrderCreate(accountID,data=mktOrder.data)

    try:
        rv = client.request(r)
    except oandapyV20.exceptions.V20Error as err:
        print("")
        print("UNITS_INVALID")
    else:
        print("")

    excel = win32.gencache.EnsureDispatch('Excel.Application')

    for wb in excel.Workbooks:
        if wb.Name == 'forex2.xlsx':
            wb.Save()
    book = open_workbook('C:/Users/dell/Documents/forex2.xlsx')

    r = positions.PositionList(accountID=accountID)
    client.request(r)
    dict = r.response

    a = list(dict.items())[0][1]

    for i,element in enumerate(a):
        long = a[i]
        long2 = long['long']
        symbol = long['instrument']
        try:
            averagePrice = long2['averagePrice']
        except:
            pass
        else:
            window = tk.Tk()
            frame_a = tk.Frame()
            label_a = tk.Label(master=frame_a,text="Hello")
            label_a.pack()
            frame_a.pack()

            for sheet in book.sheets():
                for rowidx in range(sheet.nrows):
                    row = sheet.row(rowidx)
                    for colidx,cell in enumerate(row):
                        if cell.value == symbol:
                            row = rowidx + 3
                            current_bid = sheet.cell(1,row)
                            current_bid = str(current_bid)
                            current_bid = float(current_bid.replace("number:",""))
                            str = "Beginning Balance:",balance,"Current Bid:",current_bid,"Average Price:",averagePrice,"Current Profit:",round(
                                (current_bid - float(averagePrice)) * units0,2)
                            print(str)

                            data = {"longUnits": "ALL"}

                            r = positions.PositionClose(accountID=accountID,instrument=symbol,data=data)
                            client.request(r)

解决方法

问题是您使用
str = "Beginning Balance:",balance,"Current Bid:",current_bid,"Average Price:",averagePrice,"Current Profit:",round((current_bid - float(averagePrice)) * units0,2)
，它将功能str替换为您在此处分配的变量。尝试替换此变量的名称，它应该可以正常工作。