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.
so umm... sightly embarrassing, 
setPlaceHolderText() is suppose to have a lowercase h -> setPlaceholderText()
and QLayout.setFixedSize is suppose to have uppercase S -> SetFixedSize()
PyQt5 5.8.2 QLineEdit has no attribute 'setPlaceHolderText'