[PATCH] TG Widgets: Improve DataGrid widget, allow to use list/dict as value holders

[xaka]

there is no way to redefine attrwrapper in child classes

class MyDataGrid(DataGrid):
  class attrwrapper(object): # i redefined it, but DataGrid.attrwrapper still in use
    pass

there is no way to use list/tuple or dict objects as value holders

grid = DataGrid(fields=[
  ('Field 1', 'key1'),
  ('Field 2', 'key2'),
])
grid.display([{
  'key1' : 'val1',
  'key2' : 'val2'
}])

# ===

grid = DataGrid(fields=[
  ('Field 1', 0),
  ('Field 2', 1),
])
grid.display([
  ('val1', 'val2'),
  ('val3', 'val4')
])

Patch and additional tests attached.

----------------------------------------------------------------------
Ran 448 tests in 71.940s

OK

[chrisz]

Thanks, applied in r7169. Sorry for the delay.