diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/python-win32-2.6.1/lib/runpy.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/python-win32-2.6.1/lib/runpy.py Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,148 @@ +"""runpy.py - locating and running Python code using the module namespace + +Provides support for locating and running Python scripts using the Python +module namespace instead of the native filesystem. + +This allows Python code to play nicely with non-filesystem based PEP 302 +importers when locating support scripts as well as when importing modules. +""" +# Written by Nick Coghlan +# to implement PEP 338 (Executing Modules as Scripts) + +import sys +import imp +try: + from imp import get_loader +except ImportError: + from pkgutil import get_loader + +__all__ = [ + "run_module", +] + + +def _run_code(code, run_globals, init_globals=None, + mod_name=None, mod_fname=None, + mod_loader=None, pkg_name=None): + """Helper for _run_module_code""" + if init_globals is not None: + run_globals.update(init_globals) + run_globals.update(__name__ = mod_name, + __file__ = mod_fname, + __loader__ = mod_loader, + __package__ = pkg_name) + exec code in run_globals + return run_globals + +def _run_module_code(code, init_globals=None, + mod_name=None, mod_fname=None, + mod_loader=None, pkg_name=None): + """Helper for run_module""" + # Set up the top level namespace dictionary + temp_module = imp.new_module(mod_name) + mod_globals = temp_module.__dict__ + # Modify sys.argv[0] and sys.module[mod_name] + saved_argv0 = sys.argv[0] + restore_module = mod_name in sys.modules + if restore_module: + saved_module = sys.modules[mod_name] + sys.argv[0] = mod_fname + sys.modules[mod_name] = temp_module + try: + _run_code(code, mod_globals, init_globals, + mod_name, mod_fname, + mod_loader, pkg_name) + finally: + sys.argv[0] = saved_argv0 + if restore_module: + sys.modules[mod_name] = saved_module + else: + del sys.modules[mod_name] + # Copy the globals of the temporary module, as they + # may be cleared when the temporary module goes away + return mod_globals.copy() + + +# This helper is needed due to a missing component in the PEP 302 +# loader protocol (specifically, "get_filename" is non-standard) +def _get_filename(loader, mod_name): + try: + get_filename = loader.get_filename + except AttributeError: + return None + else: + return get_filename(mod_name) + +# Helper to get the loader, code and filename for a module +def _get_module_details(mod_name): + loader = get_loader(mod_name) + if loader is None: + raise ImportError("No module named %s" % mod_name) + if loader.is_package(mod_name): + raise ImportError(("%s is a package and cannot " + + "be directly executed") % mod_name) + code = loader.get_code(mod_name) + if code is None: + raise ImportError("No code object available for %s" % mod_name) + filename = _get_filename(loader, mod_name) + return loader, code, filename + + +# XXX ncoghlan: Should this be documented and made public? +# (Current thoughts: don't repeat the mistake that lead to its +# creation when run_module() no longer met the needs of +# mainmodule.c, but couldn't be changed because it was public) +def _run_module_as_main(mod_name, set_argv0=True): + """Runs the designated module in the __main__ namespace + + These __*__ magic variables will be overwritten: + __file__ + __loader__ + """ + try: + loader, code, fname = _get_module_details(mod_name) + except ImportError as exc: + # Try to provide a good error message + # for directories, zip files and the -m switch + if set_argv0: + # For -m switch, just disply the exception + info = str(exc) + else: + # For directories/zipfiles, let the user + # know what the code was looking for + info = "can't find '__main__.py' in %r" % sys.argv[0] + msg = "%s: %s" % (sys.executable, info) + sys.exit(msg) + pkg_name = mod_name.rpartition('.')[0] + main_globals = sys.modules["__main__"].__dict__ + if set_argv0: + sys.argv[0] = fname + return _run_code(code, main_globals, None, + "__main__", fname, loader, pkg_name) + +def run_module(mod_name, init_globals=None, + run_name=None, alter_sys=False): + """Execute a module's code without importing it + + Returns the resulting top level namespace dictionary + """ + loader, code, fname = _get_module_details(mod_name) + if run_name is None: + run_name = mod_name + pkg_name = mod_name.rpartition('.')[0] + if alter_sys: + return _run_module_code(code, init_globals, run_name, + fname, loader, pkg_name) + else: + # Leave the sys module alone + return _run_code(code, {}, init_globals, run_name, + fname, loader, pkg_name) + + +if __name__ == "__main__": + # Run the module specified as the next command line argument + if len(sys.argv) < 2: + print >> sys.stderr, "No module specified for execution" + else: + del sys.argv[0] # Make the requested module sys.argv[0] + _run_module_as_main(sys.argv[0])