dogtail not finding the programs

[Albert Vilella <avilella gmail com>]

Not finding the programs:

avb magneto:~/instalats/dogtail/dogtail/examples
$ ./firefox-test-browsing-local-html-file.py
Detecting distribution: Ubuntu (or derived distribution)
Warning: Dogtail could not import the Python bindings for libwnck.
Window-manager manipulation will not be available.
searching for child of {root}: "mozilla" application (attempt 0)
sleeping for 0.500000
searching for child of {root}: "mozilla" application (attempt 1)
sleeping for 0.500000
searching for child of {root}: "mozilla" application (attempt 2)
sleeping for 0.500000
searching for child of {root}: "mozilla" application (attempt 3)


avb magneto:~/instalats/dogtail/dogtail/examples$ ./google-search.py
Detecting distribution: Ubuntu (or derived distribution)
Warning: Dogtail could not import the Python bindings for libwnck.
Window-manager manipulation will not be available.
searching for child of {root}: "epiphany" application (attempt 0)
sleeping for 0.500000
searching for child of {root}: "epiphany" application (attempt 1)
sleeping for 0.500000
searching for child of {root}: "epiphany" application (attempt 2)
sleeping for 0.500000

Any hint?