Merge pull request jupyter-widgets#2013 from jasongrout/spectypes

Update spec docs for typed tuples to include the element type.

packages/schema/generate-spec.py

@@ -28,8 +28,10 @@ def typing(x):
  s = 'string (one of %s)'%(', '.join('`%r`'%i for i in x.values))
  elif isinstance(x, Unicode):
  s = 'string'
- elif isinstance(x, (Tuple, TypedTuple, List)):
+ elif isinstance(x, (Tuple, List)):
  s = 'array'
+ elif isinstance(x, TypedTuple):
+ s = 'array of ' + typing(x._trait)
  elif isinstance(x, Bool):
  s = 'boolean'
  elif isinstance(x, (CFloat, Float)):
@@ -43,7 +45,7 @@ def typing(x):
  elif isinstance(x, Instance) and issubclass(x.klass, widgets.Widget):
  s = 'reference to %s widget'%(x.klass.__name__)
  # ADD the widget to this documenting list
- if x.klass not in [i[1] for i in widgets_to_document]:
+ if x.klass not in [i[1] for i in widgets_to_document] and x.klass != widgets.Widget:
  widgets_to_document.append((x.klass.__name__, x.klass))
  elif isinstance(x, Any):
  # In our case, these all happen to be values that are converted to strings