pyautogui doesn't let me select text

I want to select some text on the screen. I figured using pyautogui would be the way to go. I did the following:

keyDown('shift')
sleep(0.1)
press('end')
sleep(0.1)
keyUp('shift')

When doing this exact combination by hand it does select the text I want it to. Of course the sleep function is from the time module.

I even tried to select text in word using the following:

keyDown('shift')
press('right')
press('right')
keyUp('shift')

And even this didn't work... Does anyone know why?

Thanks in advance!

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