If you need 10.4-10.5 compatibility, run Python as a 32-bit binary with this command: 40 INFO: Platform: Darwin-15.0.0-x86_64-i386-64bitĤ1 INFO: wrote /Users/rbc/Transporter/MainShare/Projects/bouncer/Bouncer.specĤ1 WARNING: You are running 64-bit Python: created binaries will only work on Mac OS X 10.6+.