Declared label parameter default as None
@@ -124,7 +124,7 @@ class Dimension(param.Parameterized):
'weight'. Valid Python identifiers make good names, because they
can be used conveniently as a keyword in many contexts.""")
- label = param.String(doc="""
+ label = param.String(default=None, doc="""
Unrestricted label used to describe the dimension. A label
should succinctly describe the dimension and may contain any
characters, including Unicode and LaTeX expression.""")
