def onUploadBtn(self, event):
        self.checkIfEditing()
        if not self.frame.IsShown():
            self.frame.CenterOnParent()
            self.frame.ShowModal()
            self.frame.SetFocus()
        else:
            self.frame.Hide()

        event.Skip()
Returns a fraction field, i.e. `K(X)`.
dataset/ETHPy150Open ODM2/ODMToolsPython/odmtools/controller/frmAddPoints.py/AddPoints.onUploadBtn--crossover with--dataset/ETHPy150Open sympy/sympy/sympy/polys/domains/quotientring.py/QuotientRing.frac_field