py3: raw_input() -> input()
py3: raw_input() -> input()

Signed-off-by: Igor Gnatenko <c869b0bfe2cf1da26c2efd33f6d6d74ddcbbdd2b@gmail.com>

mjirik/pyseg_base,mjirik/pysegbase,mjirik/pyseg_base,mjirik/pysegbase