| """ |
| Compile a Python script into an executable that embeds CPython and run it. |
| Requires CPython to be built as a shared library ('libpythonX.Y'). |
| |
| Basic usage: |
| |
| python cythonrun somefile.py [ARGS] |
| """ |
| |
| DEBUG = True |
| |
| import sys |
| import os |
| from distutils import sysconfig |
| |
| def get_config_var(name, default=''): |
| return sysconfig.get_config_var(name) or default |
| |
| INCDIR = sysconfig.get_python_inc() |
| LIBDIR1 = get_config_var('LIBDIR') |
| LIBDIR2 = get_config_var('LIBPL') |
| PYLIB = get_config_var('LIBRARY') |
| PYLIB_DYN = get_config_var('LDLIBRARY') |
| if PYLIB_DYN == PYLIB: |
| # no shared library |
| PYLIB_DYN = '' |
| else: |
| PYLIB_DYN = os.path.splitext(PYLIB_DYN[3:])[0] # 'lib(XYZ).so' -> XYZ |
| |
| CC = get_config_var('CC', os.environ.get('CC', '')) |
| CFLAGS = get_config_var('CFLAGS') + ' ' + os.environ.get('CFLAGS', '') |
| LINKCC = get_config_var('LINKCC', os.environ.get('LINKCC', CC)) |
| LINKFORSHARED = get_config_var('LINKFORSHARED') |
| LIBS = get_config_var('LIBS') |
| SYSLIBS = get_config_var('SYSLIBS') |
| EXE_EXT = sysconfig.get_config_var('EXE') |
| |
| def _debug(msg, *args): |
| if DEBUG: |
| if args: |
| msg = msg % args |
| sys.stderr.write(msg + '\n') |
| |
| def dump_config(): |
| _debug('INCDIR: %s', INCDIR) |
| _debug('LIBDIR1: %s', LIBDIR1) |
| _debug('LIBDIR2: %s', LIBDIR2) |
| _debug('PYLIB: %s', PYLIB) |
| _debug('PYLIB_DYN: %s', PYLIB_DYN) |
| _debug('CC: %s', CC) |
| _debug('CFLAGS: %s', CFLAGS) |
| _debug('LINKCC: %s', LINKCC) |
| _debug('LINKFORSHARED: %s', LINKFORSHARED) |
| _debug('LIBS: %s', LIBS) |
| _debug('SYSLIBS: %s', SYSLIBS) |
| _debug('EXE_EXT: %s', EXE_EXT) |
| |
| def runcmd(cmd, shell=True): |
| if shell: |
| cmd = ' '.join(cmd) |
| _debug(cmd) |
| else: |
| _debug(' '.join(cmd)) |
| |
| try: |
| import subprocess |
| except ImportError: # Python 2.3 ... |
| returncode = os.system(cmd) |
| else: |
| returncode = subprocess.call(cmd, shell=shell) |
| |
| if returncode: |
| sys.exit(returncode) |
| |
| def clink(basename): |
| runcmd([LINKCC, '-o', basename + EXE_EXT, basename+'.o', '-L'+LIBDIR1, '-L'+LIBDIR2] |
| + [PYLIB_DYN and ('-l'+PYLIB_DYN) or os.path.join(LIBDIR1, PYLIB)] |
| + LIBS.split() + SYSLIBS.split() + LINKFORSHARED.split()) |
| |
| def ccompile(basename): |
| runcmd([CC, '-c', '-o', basename+'.o', basename+'.c', '-I' + INCDIR] + CFLAGS.split()) |
| |
| def cycompile(input_file, options=()): |
| from Cython.Compiler import Version, CmdLine, Main |
| options, sources = CmdLine.parse_command_line(list(options or ()) + ['--embed', input_file]) |
| _debug('Using Cython %s to compile %s', Version.version, input_file) |
| result = Main.compile(sources, options) |
| if result.num_errors > 0: |
| sys.exit(1) |
| |
| def exec_file(program_name, args=()): |
| runcmd([os.path.abspath(program_name)] + list(args), shell=False) |
| |
| def build(input_file, compiler_args=(), force=False): |
| """ |
| Build an executable program from a Cython module. |
| |
| Returns the name of the executable file. |
| """ |
| basename = os.path.splitext(input_file)[0] |
| exe_file = basename + EXE_EXT |
| if not force and os.path.abspath(exe_file) == os.path.abspath(input_file): |
| raise ValueError("Input and output file names are the same, refusing to overwrite") |
| if (not force and os.path.exists(exe_file) and os.path.exists(input_file) |
| and os.path.getmtime(input_file) <= os.path.getmtime(exe_file)): |
| _debug("File is up to date, not regenerating %s", exe_file) |
| return exe_file |
| cycompile(input_file, compiler_args) |
| ccompile(basename) |
| clink(basename) |
| return exe_file |
| |
| def build_and_run(args): |
| """ |
| Build an executable program from a Cython module and runs it. |
| |
| Arguments after the module name will be passed verbatimely to the |
| program. |
| """ |
| cy_args = [] |
| last_arg = None |
| for i, arg in enumerate(args): |
| if arg.startswith('-'): |
| cy_args.append(arg) |
| elif last_arg in ('-X', '--directive'): |
| cy_args.append(arg) |
| else: |
| input_file = arg |
| args = args[i+1:] |
| break |
| last_arg = arg |
| else: |
| raise ValueError('no input file provided') |
| |
| program_name = build(input_file, cy_args) |
| exec_file(program_name, args) |
| |
| if __name__ == '__main__': |
| build_and_run(sys.argv[1:]) |