TypeError: _elementWidth() takes exactly 4 arguments (3 given)

[maryjis]

Hello. I use method wrapOn(canvas, width, height) and get such exeption in finction _elementWidth(self, v, s, cellcoord):

ew = self._elementWidth(e,s)

File "D:/DocsFromNotebook/Clinic Work/knowledge_base/branches/clinicProject\audit\spreadsheettable.py", line 272, in _elementWidth
TypeError: _elementWidth() takes exactly 4 arguments (3 given)
[25/Jan/2018 11:34:27] "POST /audit/convertPDF/ HTTP/1.1" 500 147430
File "D:/DocsFromNotebook/Clinic

 def _elementWidth(self, v, s, cellcoord):
        if isinstance(v,(list,tuple)):
            w = 0
            for e in v:
                ew = self._elementWidth(e,s)
                if ew is None: return None
                w = max(w,ew)
            return w