how to increase the row height of the header label

Question

Here i want to increase the row height of the headerlabel and font size of the cell items. In my code I am using self.table.setRowHeight() method, but its not working. So please tell me is their any method to increase the row height of the header labels and font size of cell items.

given bellow is my code:

import sys
from PyQt4 import QtGui, QtCore


ROUNDED_STYLE_SHEET1 = """QPushButton {
     background-color: green;
     color: white;
     border-style: outset;
     border-width: 4px;
     border-radius: 15px;
     border-color: none;
     font: bold 12px;
     min-width: 10em;
     padding: 10px;
 }
"""

OVAL = """QPushButton {

      position: relative;
      width: 50px;
      height: 30px;
      margin: 20px 0;
      background: blue;
      border-radius: 48% / 25%;
      color: white;
      font: bold 10px;
}
"""

class Example(QtGui.QWidget):

    def __init__(self):
        super(Example, self).__init__()

        self.initUI()

    def initUI(self):
      self.label = QtGui.QLabel("Invoice Serial Number-39",self)
      self.label.setStyleSheet("font: bold 20pt AGENTORANGE")
      self.label.move(10,20)


      self.line_edit = QtGui.QLineEdit(self)
      self.line_edit.move(900,15)
      self.line_edit.resize(300,30)
      self.btn1 = QtGui.QPushButton("connect",self)
      self.btn1.setStyleSheet(ROUNDED_STYLE_SHEET1)
      self.btn1.move(1200,10)
      self.btn2 =QtGui.QPushButton("back", self)
      self.btn2.move(70,200)
      self.btn3 = QtGui.QPushButton("Reset Form", self)
      self.btn3.move(140,200)
      self.btn3.setStyleSheet("background-color:brown")
      self.btn4 = QtGui.QPushButton("pay", self) 
      self.btn4.setStyleSheet(OVAL)
      self.btn4.move(1200,170)

      self. table = QtGui.QTableWidget(self)
      self.table.move(10,70)
      self.table.resize(1350,100)
      self.table_item = QtGui.QTableWidgetItem()
      self.table.setRowCount(1)
      self.table.setColumnCount(6)
      self.tbutton = QtGui.QToolButton()
      self.tbutton.setToolTip("delete")
      self.tbutton.setIcon(QtGui.QIcon("trash1.png"))
      self.tbutton.setCheckable(True) 
      self.qspinbox = QtGui.QSpinBox()
      self.qspinbox.setMinimum(1)
      self.qspinbox.setMaximum(50)
      self.qspinbox.setRange(1,50)
      self.qspinbox.setMinimum(1)

      self.table.setHorizontalHeaderLabels(("S.no, Item Description,Qty,Rate(Rs:),Subtotal,"",").split(','))
      self.table.setVerticalHeaderLabels(("1").split(','))

      self.table.setItem(0,0,QtGui.QTableWidgetItem("1"))
      self.table.setItem(0,1, QtGui.QTableWidgetItem("Acne-aid Wash Facial Cleansing"))
      self.table.setItem(0,2,QtGui.QTableWidgetItem("1"))
      self.table.setItem(0,3,QtGui.QTableWidgetItem("191.72"))
      self.table.setItem(0,4,QtGui.QTableWidgetItem("191.72"))
      self.table.setItem(0,5,QtGui.QTableWidgetItem(""))
      self.table.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
      self.table.setCellWidget(0,5,self.tbutton)
      self.table.setCellWidget(0,2,self.qspinbox)
      self.table.horizontalHeader().setStyleSheet("QHeaderView { font-size:  18pt};")
      self.table.horizontalHeader().setStyleSheet("::section {background-color : lightGray;font-size:10pt;}")
      self.table.setRowHeight(0,100)
      self.table.horizontalHeader().setStretchLastSection(True)
      self.table.setStyleSheet("QTableWidget{ width:100%; height: 100px; }")




      self.table.setColumnWidth(0,100)
      self.table.resizeRowsToContents()

      self.table.setColumnWidth(1,250)
      self.table.setColumnWidth(2,300)
      self.table.setColumnWidth(3,250)
      self.table.setColumnWidth(4,250)
      self.table.setColumnWidth(5,200)





      self.btn4.clicked.connect(self.on_pushButton_clicked)
      # self.dialog = Example1()


      self.setWindowTitle("business management")
      self.setGeometry(200,300,900,600)
      self.showMaximized()

    def on_pushButton_clicked(self):
        self.dialog.showMaximized() 


def main():
    app = QtGui.QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())
    ex.setStyleSheet("background-color:white") 


if __name__ == '__main__':
    main()

Answer 1

If you want to increase the height of the horizontal header you must use setFixedHeight(), for example:

self.table.horizontalHeader().setFixedHeight(60)

If you want to increase the font of the cells you must set the setFont() method of the QTableWidget:

fnt = self.table.font()
fnt.setPointSize(40)
self.table.setFont(fnt)