PyQt5 5.8.2 QLineEdit没有属性'setPlaceHolderText'

Question

I'm trying figure out whats wrong with my PyQt5 install, I've looked at all the documentation and I should be able to use placeHolderText and setPlaceHolderText() but it doesn't look like it does. The QtWidgets.QLineEdit() works and shows up on my gui but can get it to setPlaceHolderText . Also QLayout.setFixedSize also returns the same error. Importing PyQt5 doesn't return any errors so these should work too.

I installed PyQt5 through pip3 on python 3.5.2, has anyone had this issue before, I'm not sure what I've done wrong.

Answer 1

所以，嗯……很尴尬， setPlaceHolderText()假定为小写h -> setPlaceholderText()和QLayout.setFixedSize假定为大写S -> SetFixedSize()