You could find some workarounds to try to mitigate the risks I've mentioned (for example encrypting the plaintext words, proper deletion from memory ect.). But tbh, its better to just stick with the manual input method, if you have to of course. There are more secure ways such as using passkeys ect..
Would something like using pyperclip to copy the seed to the clipboard and then simulate a ctrl + v to paste be better than sending the keystrokes? Or same thing? Just some quick thoughts.
pyperclip.copy(SEED)
keyboard.press_and_release('ctrl+v')
To delete from memory,
del selected_words and then call the garbage collector with
gc.collect()?