Since this bug was filed initially, kiwisolver has been packaged in Debian [1]. So a dependency on python-kiwisolver should resolve that part.
Also, pytimechart seems to have an indirect dependency on python-fonttools now, I am at least not able to remove fonttools without apt also removing pytimechart. [1] https://tracker.debian.org/pkg/kiwisolver -- mvh / best regards Hans Joachim Desserud http://desserud.org
