AttributeError: 'int' 对象没有属性 'encode'

Question

我正在编写一个简单的程序，它基本上可以发出随机单词。但是这发生了。

AttributeError: 'int' object has no attribute 'encode'

这是程序。

from tkinter import *
import random,os,sys,shelve,pickle
   def atoi(s):
        rtr=0
       for c in s:
            rtr=rtr*10 + ord(c) - ord('0')

        return rtr

class Application(Frame):
    "a application baced GUI"
    def __init__(self,master):
        "to initilize the frame"
        super(Application,self).__init__(master)
        self.grid()
        self.create_widgets()
    def create_widgets(self):
        self.bttn_to_sumbit = Button(self,text = "SHOOT!",command = self.shoot)
        self.bttn_to_sumbit.grid(row = 4,column = 5,sticky = E)
        self.ins = Text(self, width = 30, height = 20, wrap = WORD)
        self.ins.grid(row = 11, column = 1, sticky = E)
        self.ins.delete(0.0,END)
        self.ins.insert(0.0,"Your words will be displayed here")
   def shoot(self):
    try:
        fd = open("CurrentNum.txt","r")
    except FileNotFoundError:
        self.ins.delete(0.0,END)
        self.ins.insert(0.0,"NO WORDS FIND!!")
    f = shelve.open("Data.dat")
    num = fd.read()
    rnum = len(num)
    nnum = str(rnum)
    tnums = atoi(nnum)

    key = random.randint(1,tnums)
    print(key)
    self.next = Button(self,text = "Next",command = self.shoot)
    word = f[key]
    self.ins.delete(0.0,END)
    self.ins.insert(0.0,word)
root = Tk()
root.title("WordShooter BETA")
root.geometry("500x150")
app = Application(root)
root.mainloop()

是的。因此，如果您有任何建议，请回复。如果你想要我的杰作。转到 goo.gl/c7yxBL > scc > 密码：SCCdatabase 谢谢

Answer 1

f是一个shelve对象（类似字典的结构）。key是一个整数。然后，您尝试查找key的f，但是，根据有关文件shelve：

键是普通字符串。

铸造key成一个字符串第一。

key = str(random.randint(1,tnums))