Question

我正在尝试从main.py获取用户输入，然后将输出定制到所述用户输入。我不仅得到了这个错误，而且当我启动main.py时，似乎我的runAnalytics正在运行，而不是当我点击我的按钮命令时这样做。

main.py

import runAnalytics
import tkinter
import os
import centerWindow

loadApplication = tkinter.Tk()
loadApplication.title("Stock Analytics")
loadApplication.geometry("1080x720")

label1 = tkinter.Label(loadApplication, text = "Ticker")
input1 = tkinter.Entry(loadApplication)

loadAnalytics = tkinter.Button(loadApplication, text = "Load Analytics", command = runAnalytics.run(input1))

centerWindow.center(loadApplication)

loadAnalytics.pack()
label1.pack()
input1.pack()

loadApplication.mainloop()

runAnalytics.py

from yahoo_finance import Share
import tkinter
import os
import centerWindow

def run(input1):
    ticker = Share(input1)
    loadAnalytics = tkinter.Tk()
    loadAnalytics.title("$" + ticker + " Data")
    loadAnalytics.geometry("1080x720")

    print ("Price per share: " + ticker.get_price())

    ticker.refresh()
    print ("Price per share: " + ticker.get_price())

    print("The dividend yield is: " + ticker.get_dividend_yield())

    print("The 52 week low is: " + ticker.get_year_low())
    print("The 52 week high is: " + ticker.get_year_high())
    print("The volume is: " + ticker.get_volume())

    print("The previous close was: " + ticker.get_prev_close())
    print("The previous open was: " + ticker.get_open())

    loadAnalytics.mainloop()

错误讯息：

追踪（最近一次通话）：文件＆＃34; C：\ Users \ MyName \ Documents \ Python Projects \ MarketData \ main.py＆＃34;，第13行，in loadAnalytics = tkinter.Button（loadApplication，text =＆＃34; Load Analytics＆＃34;，command = runAnalytics.run（input1））文件＆＃34; C：\ Users \ MyName \ Documents \ Python Projects \ MarketData \ runAnalytics.py＆＃34;，第12行，在运行中打印（＆＃34;每股价格：＆＃34; + ticker.get_price（）） AttributeError：＆＃39; str＆＃39;对象没有属性＆＃39; get_price＆＃39;

Answer 1

您对runAnalytics正在运行的假设是正确的，因为在按照您的方式将其绑定到按钮时执行该函数。

根据effbot docs你需要使用lambda函数来将函数与传递的参数绑定到这样的按钮：

import tkinter

def test_func(val):
    print(type(val))
    print(val)
    share_id = val.get()
    print(share_id)


loadApplication = tkinter.Tk()
loadApplication.title("Stock Analytics")
loadApplication.geometry("1080x720")

label1 = tkinter.Label(loadApplication, text = "Ticker")
input1 = tkinter.Entry(loadApplication)

loadAnalytics = tkinter.Button(loadApplication, text="Load Analytics", command=lambda: test_func(input1))


loadAnalytics.pack()
label1.pack()
input1.pack()

loadApplication.mainloop()

然而，还有第二件事要记住：

input1 = tkinter.Entry(loadApplication)

创建一个名为Entry的{{1}}窗口小部件，然后传递给该函数。问题是input1不包含您在条目小部件中键入的字符串，而是包含对小部件的引用（小部件ID）。要获取小部件的内容，您需要调用其input1方法，如我的代码段所示。

Python AttributeError：＆＃39; str＆＃39;对象没有属性＆＃39; get_price＆＃39;

1 个答案: