Stub out the python library APIs which your code is dependent on and have not been converted. Verify your source files have been written to target.Ĭreate a new project in your Eclipse IDE and import all the generated source files. Translate each file in turn using a command similar to: python translate.py gamemenu.py Step 2: Translate the source files to javaĬopy all the trace files captured above into the translator directory.Ĭopy all your python source files you wish to translate into the translator directory.Ĭreate an output directory within the translator directory: mkdir target Repeat for all other python source files you wish to convert. Use your application in a normal manner to ‘exercise’ all the methods in the target file.Įnsure that both gamemenu.py.trace and gamemenu.py.return-trace have been written. Parameters are passed through to your main(). Run your application using python trace.py.
In this example gamemenu.py.Ĭhange the import statement to import everything from the file containing main(): Assuming you have a python program, started using a main(args) method:Ĭopy “tracer/trace.py” into your application’s directory (the directory of the file where the main(args) method is located).Įdit trace.py and update TRACE_BASE = "/home/chris/ab/gamemenu.py" with the path to the python script file you wish to profile. On a fast machine you can change this if you like.
Profiling a running program is slow so the tracer is restricted to profiling methods withinĪ single python source file at a time. Prepare to get your hands a little dirty… Step 1: Capture the trace information for runtime argument types. With unsupported concepts (like creating value objects for tuples etc) and porting Semi-automatically with a modern Java IDE. A lot of the outstanding syntax errors can be fixed In its current form the tool will perform about 75% of code translation. Surprisingly these two simple parts are sufficient to translate some simple Python P2j : A (restricted) python to java source translatorĪ Source translator which attempts to convert Python syntax to the Java equivalentĪ profiler which uses Python’s Debugger and AST tools to index all run time methodĪrgument information, used by 1.
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