I am trying to create vector tiles:

~/qt-marble/marble-master/tools/vectortilecreator$ python3 vectortilecreator.py c.osm.pbf
Traceback (most recent call last):
File "vectortilecreator.py", line 90, in <module>
for bounds in reader:
File "/usr/lib/python3.4/codecs.py", line 319, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x9c in position 22: invalid start byte

The script does not take the .pbf file directly. You need to pass a regions text file with a bounding box and the pbf file, see the existing ones.