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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _get_font(self, pys_style):
 """Returns xlwt.Font for pyspread style"""


        # Return None if there is no font
        if "textfont" not in pys_style:
            return

        font = xlwt.Font()

        font.name = pys_style["textfont"]

        if "pointsize" in pys_style:
            font.height = pys_style["pointsize"] * 20.0

        if "fontweight" in pys_style:
            font.bold = (pys_style["fontweight"] == wx.BOLD)

        if "fontstyle" in pys_style:
            font.italic = (pys_style["fontstyle"] == wx.ITALIC)

        if "textcolor" in pys_style:
            textcolor = wx.Colour()
            textcolor.SetRGB(pys_style["textcolor"])
            font.colour_index = self.color2idx(*textcolor.Get())

        if "underline" in pys_style:
            font.underline_type = pys_style["underline"]

        if "strikethrough" in pys_style:
            font.struck_out = pys_style["strikethrough"]

        return font