Does the function create docx only after the program is closed?

Question

Python

The wxpython button calls a function that creates, in theory, a docx document. For some reason, the document is created only after the frame is closed and only one, even if the button is pressed several times. Please help me fix it.

Btn_On_Assistent = wx.Button(self, -1)
        self.Bind(wx.EVT_BUTTON, self.makeSomething, Btn_On_Assistent)

def makeSomething():
        NewDocument = Document()
        NewDocument.save('test.doc')