It should be able to load .pz files, but you need to make sure Panda was built with --use-zlib, and in your makefile you also need to specify -s USE_ZLIB=1 to CFLAGS.
It should be able to load .pz files, but you need to make sure Panda was built with --use-zlib, and in your makefile you also need to specify -s USE_ZLIB=1 to CFLAGS.