ボタンコマンド内の別のクラスの関数を呼び出す

Question

"gett"クラスのボタンを押したときにcarクラスからshowallrecords1関数を呼び出したいとします。

は、私はここに私のコード

from tkinter import * 
import tkinter as tk 
import sqlite3 

conn = sqlite3.connect('jadval.db') 
c = conn.cursor() 

class App: 
    def __init__(self,master): 
     frame = Frame(master) 
     frame.pack() 

##  bottomframe = Frame(master) 
##  bottomframe.pack(side = BOTTOM) 

     self.master=master 

     a= StringVar() 
     b= StringVar() 
     a1= StringVar() 
     b1= StringVar() 
     c= StringVar() 

     self.button = Button(frame,text="memory", command=self.ouvrir) 
     self.button.pack(side=LEFT) 

     self.button2 = Button(frame,text="report", command=self.tabluh) 
     self.button2.pack(side=LEFT) 

     self.button3 = Button(frame,text="setting", command=self.fermer) 
     self.button3.pack(side=LEFT) 

     self.button20 = Button(frame,text="calibration", command=self.cal) 
     self.button20.pack(side=LEFT) 


     self.button30 = Button(frame,text="empty weight", command=self.weighing) 
     self.button30.pack(side=LEFT) 

    def ouvrir(self): 
     root3=Toplevel(self.master) 
     mygui=records(root3) 


    def tabluh(self): 
     root4=Toplevel(self.master) 
     mygui2=report(root4) 



    def fermer(self): 
     root5=Toplevel(self.master) 
     mygui3=settting(root5) 

    def cal(self): 
     root8=Toplevel(self.master) 
     mygui8=cal(root8) 
    def weighing(self): 
     root9=Toplevel(self.master) 
     mygui9=gett(root9) 

class car():#################################################### trunck manage 

    def __init__(self,master): 

     ##super(car,self).__init__() 
##  tk.Frame.__init__(self, master) 

     self.master=master 
##  self.master.geometry('250x200+100+200') 
     self.master.geometry('400x300') 
     self.master.title('Report') 
     self.button28 = Button(self.master,text="create", command=self.tabluh1) 
     self.button28.grid(row=0, column=0) 

     self.button29 = Button(self.master,text="insert rec", command=self.insertar1) 
     self.button29.grid(row=3, column=2) 

     self.tyLabel1 = Label(self.master,text="driver name") 
     self.tyLabel1.grid(row=1, column=0) 

     self.disLabel1 = Label(self.master,text="trunck type") 
     self.disLabel1.grid(row=2, column=0) 

     self.pelLabel1 = Label(self.master,text="pelack") 
     self.pelLabel1.grid(row=3, column=0) 


     self.d = Entry(self.master) 
     self.d.grid(row=1, column=1) 

     self.e = Entry(self.master) 
     self.e.grid(row=2, column=1) 

     self.f = Entry(self.master) 
     self.f.grid(row=3, column=1) 

     self.connection = sqlite3.connect('jadval.db') 
     self.cur = self.connection.cursor() 
     self.dateLabel1 = Label(self.master, text="driver name", width=10) 
     self.dateLabel1.grid(row=4, column=0) 
     self.BMILabel1 = Label(self.master, text="trunck type", width=10) 
     self.BMILabel1.grid(row=4, column=1) 
     self.stateLabel1 = Label(self.master, text="pelack", width=10) 
     self.stateLabel1.grid(row=4, column=2) 
     self.showallrecords1() 

    def showallrecords1(self): 

     data1 = self.readfromdatabase1() 
     for index1, dat1 in enumerate(data1): 
      Label(self.master, text=dat1[0]).grid(row=index1+5, column=0) 
      Label(self.master, text=dat1[1]).grid(row=index1+5, column=1) 
      Label(self.master, text=dat1[2]).grid(row=index1+5, column=2) 

    def tabluh1(self): 

     c.execute('''CREATE TABLE trunmanage(id1 INTEGER,firs1 stringvar(10),las1 stringvar(10))''') 
    def insertar1(self): 

     d1=self.d.get() 
     e1=self.e.get() 
     f1=int(self.f.get()) 
     c.execute("INSERT INTO trunmanage (id1, firs1,las1) VALUES (?, ?, ?)",(f1, d1, e1)) 
     conn.commit() 
     self.showallrecords1() 

    def readfromdatabase1(self): 
     self.cur.execute("SELECT * FROM trunmanage") 
     return self.cur.fetchall() 


class gett():########################################### class selecting trunck from empty weight window 

    def __init__(self,master): 

     ##super(gett,self).__init__() 
##  tk.Frame.__init__(self, master) 

     self.master=master 
##  self.master.geometry('250x200+100+200') 
     self.master.geometry('200x120') 
     self.master.title('gett') 

##  obj2 = car() 
##  b1 = Button(master,text="button 1",command=obj2.showallrecords1) 
##  b1.pack() 

##  self.button32 = Button(text='select', command=self.master.showallrecords1) 
##  self.button32.pack()  
     self.button32 = Button(self.master,text="select trunck", command=self.car.showallrecords1); 
     self.button32.pack(side=LEFT) 
root = Tk() 
root.title("Dbase") 
root.geometry('500x120') 


app=App(root) 
root.mainloop() 

Answer 1

GETTクラスが "車" と呼ばれる何のメンバーを持っていないの関連部分でエラーに

'gett' object has no attribute 'car' 

を取得します。クラス定義のどこかに定義する必要があります。 I. e .:

self.car = car(master)