I'm about to remove the old translate_pypy and make translate_pypy_new renamed to translate_pypy the new default. If you encounter problems make that known. Here are the new options, notice that to only annotate for example is enough to specify just --annotate, it is not necessary to disable all things explicitly (-no-t -no-c -no-o with the old one) anymore; the default goal is to compile the target: usage: translate_pypy [options] [target] options: -h, --help show this help message and exit Annotation: -a, --annotate Annotate [default] --no-annotate Don't annotate -d, --debug Record annotation debug info RTyping: -t, --rtype RType [default] --no-rtype Don't rtype --insist Dont' stop on first rtyper error Backend optimisations: -o, --backendopt Do backend optimisations [default] --no-backendopt Don't do backend optimisations Code generation options: -s, --source Generate source code [default] --no-source Don't generate source code -b [c|llvm], --backend=[c|llvm] Backend [default: c] --gc=[boehm|ref|none] Garbage collector [default: boehm] Compilation options: -c, --compile Compile generated source [default] --no-compile Don't compile Run options: -r, --run Run compiled code --no-run Don't run compiled code [default] General&other options: --batch Don't run interactive helpers --lowmem Target should try to save memory --huge=HUGE Threshold in the number of functions after which only a local call graph and not a full one is displayed [default: 100] --text Don't start the pygame viewer --graphserve=GRAPHSERVE Serve analysis graphs on port number (see pypy/translator/tool/pygame/graphclient.py) --fork-before=[annotate|rtype|backendopt|source] (UNIX) Create restartable checkpoint before step --llinterpret Interpret the rtyped flow graphs Samuele.