It actually seems to be an issue with Launchpad and Incomplete not meaning what it used to mean.
In [6]: len(pkg.searchTasks(status="Incomplete (with response)")) Out[6]: 2
In [7]: len(pkg.searchTasks(status="Incomplete (without response)")) Out[7]: 0
In [8]: len(pkg.searchTasks(status="Incomplete")) Out[8]: 0
Incomplete used to be the combination of with and without response.
It actually seems to be an issue with Launchpad and Incomplete not meaning what it used to mean.
In [6]: len(pkg. searchTasks( status= "Incomplete (with response)"))
Out[6]: 2
In [7]: len(pkg. searchTasks( status= "Incomplete (without response)"))
Out[7]: 0
In [8]: len(pkg. searchTasks( status= "Incomplete" ))
Out[8]: 0
Incomplete used to be the combination of with and without response.