It doesn't send ascii char ! to program - it sends keyboard's code to system (probably code for key 1 which in standard layout is used for char !) and system decides what char send to program. If your system has non-standard layout then system may send wrong char.

Probably only using clipboad you can send it correctly. If you will use clipboard to copy single char and wait 0.1s between chars then you can get similar result.

Copyimport time
import pyperclip
import pyautogui

time.sleep(2)

for char in 'Hello World!':
    pyperclip.copy(char)
    pyautogui.hotkey('ctrl', 'v', interval=0.1)

BTW: using print(pyautogui.__file__) you can find folder with source code and in file _pyautogui_win.py you can see what key codes it uses in Windows.

You should see key codes assigned to chars using also

Window:

Copyprint(pyautogui._pyautogui_win.keyboardMapping)

Linux:

Copyprint(pyautogui._pyautogui_x11.keyboardMapping)

Maybe if you change values in keyboardMapping then it will send it correctly but for every layout you would have to set different values.

For example on Linux this

Copyimport pyautogui

#pyautogui._pyautogui_win.keyboardMapping['!'] = 12
pyautogui._pyautogui_x11.keyboardMapping['!'] = 12

pyautogui.typewrite('!!!')

gives me ### instead of !!!

Use pyautogui.press(“enter”) or pyautogui.hotkey(“enter”)

for pressing 3 times: use pyautogui.press(“enter”, presses=3) or

for i in range(3):
    pyautogui.press(“enter”)

for pressing lots of keys:

pyautogui.press([“enter”, “shift”])

or

for key in [“enter”, “shift”]:
    pyautogui.press(key)

dispatch user holding down the key until keyup:

pyautogui.keyDown(“enter”)

and for keyup:

pyautogui.keyUp(“enter”)

and also one thing, if you’re used keyDown, you can still use pyautogui.press(“enter”) too :D

If you want to know more go to https://pyautogui.readthedocs.io/en/latest/keyboard.html