Refresh attribute table from Python in QGIS 2

Question

Attributes values are changed in a Python plug-in (QGIS 2.14/18) when the user clicks on the canvas. The opened view of the attribute table of the changed feature does not show the changed value even if the reload table icon is selected, only if I close and reopen the attribute table. While the info tool show the new correct value. How can I force the attribute table window to refresh? The attribute is changed like this:

layer.startEditing()
layer.dataProvider().changeAttributeValues(...)
layer.commitChanges()

Answer 1

Changing to the layer.changeAttributeValue() solved my problem:

layer.startEditing()
layer.changeAttributeValue(...)
layer.commitChanges()