我是 python 新手。我正在尝试打开一个对话框以从一个小部件中获取一个值，该小部件已经完成了其他员工的列表。
但是遇到错误，无法弄清楚该怎么做。
这是我的代码：
import Tkinter,Tkconstants,tkFileDialog
from Tkinter import *
import csv
import numpy
import math
import numpy.random as nrnd
import matplotlib.pyplot as plt
import shutil
import tkMessageBox
global filesavepath
class App:
def __init__(self,master):
self.mymaster=master
frame=Frame(master)
frame.pack()
self.importbutton=Button(frame,text='Import Data',command=self.importdata)
self.importbutton.pack()
self.executebutton=Button(frame,text='Execute',command=self.popup)
self.executebutton.pack()
self.distribution_rep=Button(frame,text='Repeat Purchase Score Distribution',command=self.distrepbutton)
self.distribution_rep.pack()
self.distribution_churn=Button(frame,text='Churn Probability Distribution',command=self.distchurnbutton)
self.distribution_churn.pack()
self.exitbutton=Button(frame,text='Exit',command=self.exitapp)
self.exitbutton.pack()
self.file_opt=options={}
options['defaultextension']=''
options['filetypes']=[('allfiles','.*'),('textfiles','.txt')]
options['initialdir']='C:\\'
options['initialfile']='myfile.txt'
options['parent']=root
options['title']='Thisisatitle'
def importdata(self):
filename=tkFileDialog.askopenfilename(**self.file_opt)
filesavepath="C:/input_full.csv"
shutil.copy2(filename,filesavepath)
if filename:
return open(filename,'r')
def popup(self):
top = self.top = Tkinter.Toplevel(self)
myLabel = Tkinter.Label(top, text='Enter your username below')
myLabel.pack()
self.myEntryBox = Tkinter.Entry(top)
self.myEntryBox.pack()
mySubmitButton = Tkinter.Button(top, text='Done', command=self.execbutton)
mySubmitButton.pack()
def execbutton(self):
if self.myEntryBox.get() != "":
self.timevalue = self.myEntryBox.get()
self.top.destroy()
execfile("Repeat Purchase Algo in python v6")
tkMessageBox.showinfo("Job Done", "Probability Computation completed")
def send(self):
global timevalue
timevalue=self.myEntryBox.get()
self.top.destroy()
def distrepbutton(self):
plt.hist(prob,bins=10,normed=TRUE)
plt.xlabel('Probability')
plt.title('Histogram of Repeat Purchase Probability')
plt.show()
def distchurnbutton(self):
plt.hist(churn_prob,bins=10,normed=TRUE)
plt.ylabel('Probability')
plt.title('Histogram of Churn Probability')
plt.show()
def exitapp(self):
self.mymaster.destroy()
root=Tk()
root.title('Repeat Puchase Widget')
app=App(root)
root.mainloop()
因此，您可能很清楚，我正在使用 Import 按钮导入数据集，通过名为 Execute 的按钮在另一个代码中执行一些分析，然后显示一些图表。
我想要的是在单击“执行”按钮时打开一个弹出窗口，该窗口将输入一个值。但我收到以下错误：
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1410, in __call__
return self.func(*args)
File "C:/Python27/widget_repeat_purchase_v4", line 42, in popup
top = self.top = Tkinter.Toplevel(self)
File "C:\Python27\lib\lib-tk\Tkinter.py", line 2017, in __init__
BaseWidget.__init__(self, master, 'toplevel', cnf, {}, extra)
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1965, in __init__
BaseWidget._setup(self, master, cnf)
File "C:\Python27\lib\lib-tk\Tkinter.py", line 1943, in _setup
self.tk = master.tk
AttributeError: App instance has no attribute 'tk'
我不知道该怎么办。请帮忙。