CT_PieChart

Return the c:cat element of the first series in this xChart, or None if not present.

Return the value of the c:ptCount descendent of this xChart element. Its parent can be one of three element types. This value represents the true number of (leaf) categories, although they might not all have a corresponding c:pt sibling; a category with no label does not get a c:pt element. Returns 0 if there is no c:ptCount descendent.

Return a sequence representing the c:pt elements under the c:cat element of the first series in this xChart element. A category having no value will have no corresponding c:pt element; None will appear in that position in such cases. Items appear in idx order. Only those in the first <c:lvl> element are included in the case of multi-level categories.

Return the value of the ./c:grouping{val=?} attribute, taking defaults into account when items are not present.

Sequence of <c:ser> child elements in this xChart in c:order/@val sequence (not document or c:idx order).

XML string for this element, suitable for testing purposes.

Pretty printed for readability and without an XML declaration at the top.

First child with tag in tagnames, or None if not found.

Generate each <c:ser> child element in this xChart in c:order/@val sequence (not document or c:idx order).

Remove child elements with tagname (e.g. "a:p") in tagnames.

Override of lxml _Element.xpath() method.

Provides standard Open XML namespace mapping (nsmap) in centralized location.