py3 compat: calculate md5sum
py3 compat: calculate md5sum

sathieu/stdeb,sathieu/stdeb,pombredanne/stdeb,LeMeteore/stdeb,astraw/stdeb,benthomasson/stdeb,LeMeteore/stdeb,LeMeteore/stdeb,astraw/stdeb,benthomasson/stdeb,pombredanne/stdeb,pombredanne/stdeb,astraw/stdeb,sathieu/stdeb,benthomasson/stdeb