Attempting to make a calculator in Python, and an error shows up twice saying that ‘Calculator” has no attribute ‘key’, as well as an issue with something else. How to I fix these errors?

I attempted to initialize the attribute as best I could, and another error occurred. The errors are on lines 31 and 59

`import tkinter as tk

class Calculator:
def init(self, master):
self.master = master
master.title(“Calculator”)

    # Create display
    self.display = tk.Entry(master, width=35, borderwidth=5, font=('Arial', 16))
    self.display.grid(row=0, column=0, columnspan=4, padx=10, pady=10)

    # Create buttons
    button_list = [
        '7', '8', '9', '/',
        '4', '5', '6', '*',
        '1', '2', '3', '-',
        '0', '.', '=', '*'
    ]

    row = 1
    col = 0
    for button_text in button_list:
        button = tk.Button(master, text=button_text, width=5, height=2, font=('Arial', 14),
        command=lambda x=button_text: self.button_click(x))
        button.grid(row=row, column=col, padx=5, pady=5)
        if col > 3:
            col = 0
            row += 1

        # Bind keyboard keys
        self.master.bind('<Key>', self.key.press)

    def button_click(self, button):
        current = self.display.get()
        if button == 'C':
            self.display.delete(0, tk.END)
        elif button == '=':
            try:
                result = eval(current)
                self.display.delete(0, tk.END)
                self.display.insert(0, str(result))
            except SyntaxError:
                self.display.delete(0, tk.END)
                self.display.insert(0, "Error")
        else:
            self.display.delete(0, tk.END)
            self.display.insert(0, current + button)

        def key_press(self, event):
            key = event.char
            if key in '0123456789+-*/.':
                self.button_click(key)
            elif key == 'r':
                self.button_click('=')
            elif key == 'x1b': # Escape key
                self.display.delete(0, tk.END)

root = tk.Tk()
calculator = Calculator(root)
root.mainloop()`