Pyqtgraph force axis labels to have decimal points

I am trying to get my axis labels to all have decimal points, even if they happen to be integers. See the below picture.

You'll notice that on the x-axis, whenever the value is an integer, it no longer displays the decimal. I would like "1" to read "1.0".

I have a method that is setting my plot style. It reads something like this

Plotstyle1

def set_plotstyle(p1, style):
    if style == 1:
        axlabel_font = QtGui.QFont()
        axlabel_font.setPixelSize(20)

        p1.showAxis('right')
        p1.showAxis('top')

        p1.showLabel('right', show=False)
        p1.showLabel('top', show=False)

        p1.showGrid(x=False, y=False)
        p1.setLogMode(x=False, y=False)
        p1.getAxis('left').tickFont = axlabel_font
        p1.getAxis('bottom').tickFont = axlabel_font
        p1.getAxis('left').labelFont = axlabel_font
        p1.getAxis('bottom').setHeight(70)
        p1.getAxis('left').setWidth(100)
        p1.getAxis('right').setWidth(60)
        p1.getAxis('left').setStyle(tickTextOffset=15)
        p1.getAxis('bottom').setStyle(tickTextOffset=15)
        p1.getAxis('top').setStyle(showValues=False)
        p1.getAxis('right').setStyle(showValues=False) 

If possible, I would like to set this feature within this method. Thanks!