I was using PyQt4 and this code works great.
self.table.horizontalHeader().setResizeMode(1, QHeaderView.Stretch)
It\'s stretching a column
In PyQt5 should be:
header = self.table.horizontalHeader() header.setSectionResizeMode(0, QtWidgets.QHeaderView.Stretch) header.setSectionResizeMode(1, QtWidgets.QHeaderView.ResizeToContents) header.setSectionResizeMode(2, QtWidgets.QHeaderView.ResizeToContents)