为什么当我尝试运行此 tkinter python 代码时会出现问题

Question

i was making a gui thing when i came across this problem

type object 'app' has no attribute 'tk'

and this is my code

if you can solve this full code it will be very helpful

    class app(Frame):
def __init__ (self,master=None):
    Frame.__init__(self,master)
    self.master=master
    self.window()
def window(self):
    self.master.title("TuTu")
    self.master.geometry("500x350")
    self.pack(fill=BOTH,expand=1)
    pic = Image.open("image.jpg")#(for image in main(app) page)
    picture = ImageTk.PhotoImage(pic)
    image =tk.Button(app, width=200, height=200, image=picture)
    image.place(relx=0.5, rely=0.35, anchor=CENTER)

Answer 1

Obviously Python's main focus is on indentation . You are trying to add two methods __init__() and window() to class app() . But without a proper indentation, these two methods would not be added anywhere.

A fix would be adjusting the tabs/spaces for your two methods, like this:

class app(Frame):
    def __init__ (self,master=None):
        Frame.__init__(self,master)
        self.master=master
        self.window()
    def window(self):
        self.master.title("TuTu")
        self.master.geometry("500x350")
        self.pack(fill=BOTH,expand=1)
        pic = Image.open("image.jpg")#(for image in main(app) page)
        picture = ImageTk.PhotoImage(pic)
        image =tk.Button(app, width=200, height=200, image=picture)
        image.place(relx=0.5, rely=0.35, anchor=CENTER)