How to make pyautogui digit at (@)?

I'm basically trying to write a code in python that print some letter using module pyautogui. I need it to write at (@) because i want to use the code to write in a facebook post and i need it to tag my friends. The problem is that my keyboard layout is italian and i can't get the at to be typed. I tried also to make the keyboard language change during the digitation but I didn't get it work. This is the code:

import pyautogui
pyautogui.typewrite('@')

didn't work. Output:

>>>

So I tried to make the code changing keyboard layout (because i noticed that if i manually set keyboard layout to english:

pyautogui.hotkey('shift', '2')

works). So this is the code, but instead of @ i get " which is (shift + 2) in italian keyboard layout.

import ctypes
from ctypes import wintypes

def change_layout(locale_id_bytes):
    KLF_ACTIVATE = 0x00000001
    klid = ctypes.create_string_buffer(locale_id_bytes)
    user32_dll = ctypes.WinDLL("user32")
    kernel32_dll = ctypes.WinDLL("kernel32")
    LoadKeyboardLayout = user32_dll.LoadKeyboardLayoutA
    LoadKeyboardLayout.argtypes = [wintypes.LPCSTR, wintypes.UINT]
    LoadKeyboardLayout.restype = wintypes.HKL
    GetLastError = kernel32_dll.GetLastError
    GetLastError.restype = wintypes.DWORD
    klh = LoadKeyboardLayout(klid, KLF_ACTIVATE)
    print("{} returned: {}".format(LoadKeyboardLayout.__name__, hex(klh)))
    print("{} returned: {}".format(GetLastError.__name__, GetLastError()))

def digit_at ():
    change_layout (b"00000409")
    import pyautogui
    pyautogui.hotkey('shift', '2')
    change_layout (b"00000410")
digit_at()

output:

LoadKeyboardLayoutA returned: 0x4090409
GetLastError returned: 0
LoadKeyboardLayoutA returned: 0x4100410
GetLastError returned: 0
"
>>> 

i copied the function to change language from this question