Python six.exec_函数代码示例

def Broken(self, oid, pair):
    broken_klasses_lock.acquire()
    try:
        if pair in broken_klasses:
            klass = broken_klasses[pair]
        else:
            module, klassname = pair
            d = {'BrokenClass': BrokenClass}
            exec_("class %s(BrokenClass): ' '; __module__=%r" %
                  (klassname, module), d)
            klass = broken_klasses[pair] = d[klassname]
            module = module.split('.')
            if len(module) > 2 and module[0] == 'Products':
                klass.product_name = module[1]
            klass.title = (
                'This object from the %s product '
                'is broken!' %
                klass.product_name)
            klass.info = (
                'This object\'s class was %s in module %s.' %
                (klass.__name__, klass.__module__))
            klass = persistentBroken(klass)
            LOG.warning(
                'Could not import class %r '
                'from module %r' % (klass.__name__, klass.__module__))
    finally:
        broken_klasses_lock.release()
    if oid is None:
        return klass
    i = klass()
    i._p_oid = oid
    i._p_jar = self
    return i

        def run_plain():
            # Using normal Python shell
            import code
            imported_objects = import_objects(options, self.style)
            try:
                # Try activating rlcompleter, because it's handy.
                import readline
            except ImportError:
                pass
            else:
                # We don't have to wrap the following import in a 'try', because
                # we already know 'readline' was imported successfully.
                import rlcompleter
                readline.set_completer(rlcompleter.Completer(imported_objects).complete)
                readline.parse_and_bind("tab:complete")

            # We want to honor both $PYTHONSTARTUP and .pythonrc.py, so follow system
            # conventions and get $PYTHONSTARTUP first then import user.
            if use_pythonrc:
                pythonrc = os.environ.get("PYTHONSTARTUP")
                if pythonrc and os.path.isfile(pythonrc):
                    global_ns = {}
                    with open(pythonrc) as rcfile:
                        try:
                            six.exec_(compile(rcfile.read(), pythonrc, 'exec'), global_ns)
                            imported_objects.update(global_ns)
                        except NameError:
                            pass
                # This will import .pythonrc.py as a side-effect
                try:
                    import user  # NOQA
                except ImportError:
                    pass
            code.interact(local=imported_objects)

def remote_profile(script, timer, interval, pickle_protocol,
                   addr, start_signo, stop_signo, verbose):
    """Launch a server to profile continuously.  The default address is
    127.0.0.1:8912.
    """
    filename, code, globals_ = script
    sys.argv[:] = [filename]
    # create listener.
    listener = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    listener.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    listener.bind(addr)
    listener.listen(1)
    # be verbose or quiet.
    if verbose:
        log = lambda x: click.echo(click.style(' > ', fg='cyan') + x)
        bound_addr = listener.getsockname()
        log('Listening on {0}:{1} for profiling...'.format(*bound_addr))
    else:
        log = noop
    # start profiling server.
    frame = sys._getframe()
    profiler = BackgroundProfiler(timer, frame, code, start_signo, stop_signo)
    profiler.prepare()
    server_args = (log, interval, pickle_protocol)
    server = SelectProfilingServer(listener, profiler, *server_args)
    spawn_thread(server.serve_forever)
    # exec the script.
    try:
        exec_(code, globals_)
    except KeyboardInterrupt:
        pass

def conv_fn_str_to_obj(fn_tup, tok, sim_funcs):
    d_orig = {}
    d_orig.update(tok)
    d_orig.update(sim_funcs)
    d_ret_list = []
    for f in fn_tup:
        d_ret = {}
        name = f[0]
        attr1 = f[1]
        attr2 = f[2]
        tok_1 = f[3]
        tok_2 = f[4]
        simfunction = f[5]
        # exec(f[6] in d_orig)
        six.exec_(f[6], d_orig)
        d_ret['function'] = d_orig[name]
        d_ret['feature_name'] = name
        d_ret['left_attribute'] = attr1
        d_ret['right_attribute'] = attr2
        d_ret['left_attr_tokenizer'] = tok_1
        d_ret['right_attr_tokenizer'] = tok_2
        d_ret['simfunction'] = simfunction
        d_ret['function_source'] = f[6]

        d_ret_list.append(d_ret)
    return d_ret_list

def __profile__(filename, code, globals_,
                timer=None, pickle_protocol=PICKLE_PROTOCOL,
                dump_filename=None, mono=False):
    frame = sys._getframe()
    profiler = Profiler(timer, top_frame=frame, top_code=code)
    profiler.start()
    try:
        exec_(code, globals_)
    except:
        # don't profile print_exc().
        profiler.stop()
        traceback.print_exc()
    else:
        profiler.stop()
    if PY2:
        # in Python 2, exec's cpu time is duplicated with actual cpu time.
        stat = profiler.stats.get_child(frame.f_code)
        stat.remove_child(exec_.func_code)
    if dump_filename is None:
        viewer, loop = make_viewer(mono)
        viewer.set_stats(profiler.stats, get_title(filename))
        try:
            loop.run()
        except KeyboardInterrupt:
            pass
    else:
        stats = profiler.result()
        with open(dump_filename, 'wb') as f:
            pickle.dump(stats, f, pickle_protocol)
        click.echo('To view statistics:')
        click.echo('  $ python -m profiling view ', nl=False)
        click.secho(dump_filename, underline=True)

def get_feature_fn(feat_str, tok, sim):
    if not isinstance(feat_str, six.string_types):
        logger.error('Input feature string is not of type string')
        raise AssertionError('Input feature string is not of type string')

    if not isinstance(tok, dict):
        logger.error('Input tok is not of type dict')
        raise AssertionError('Input tok. is not of type dict')

    if not isinstance(sim, dict):
        logger.error('Input sim is not of type dict')
        raise AssertionError('Input sim. is not of type dict')
    temp = {}
    # update sim
    if len(sim) > 0:
        temp.update(sim)
    if len(tok) > 0:
        temp.update(tok)
    fn = 'def fn(ltuple, rtuple):\n'
    fn += '    '
    fn += 'return ' + feat_str
    d = parse_feat_str(feat_str, tok, sim)
    # six.exec_(fn, temp, temp)
    six.exec_(fn, temp)
    d['function'] = temp['fn']
    d['function_source'] = fn
    return d

 def handle(self, *args, **options):
     imports = options['imports']
     query = options['query']
     verbose = options['verbose']
     assert imports, 'No imports specified.'
     assert query, 'No query specified.'
     for imp in imports.strip().split('|'):
         imp_parts = tuple(imp.split(','))
         if len(imp_parts) == 1:
             cmd = ('import %s' % imp_parts)
         elif len(imp_parts) == 2:
             cmd = ('from %s import %s' % imp_parts)
         elif len(imp_parts) == 3:
             cmd = ('from %s import %s as %s' % imp_parts)
         else:
             raise Exception('Invalid import: %s' % (imp,))
         if verbose:
             print(cmd)
         six.exec_(cmd)
     if verbose:
         print(query)
     q = eval(query, globals(), locals())
     
     job = get_current_job()
     if job:
         job.monitor_records = q.count()
         job.save()
     
     if q.count():
         print('%i records require attention.' % (q.count(),), file=sys.stderr)
     else:
         print('%i records require attention.' % (q.count(),), file=sys.stdout)

def run_rc_file(editor, rc_file):
    """
    Run rc file.
    """
    assert isinstance(editor, Editor)
    assert isinstance(rc_file, six.text_type)

    # Expand tildes.
    rc_file = os.path.expanduser(rc_file)

    # Check whether this file exists.
    if not os.path.exists(rc_file):
        print('Impossible to read %r' % rc_file)
        _press_enter_to_continue()
        return

    # Run the rc file in an empty namespace.
    try:
        namespace = {}

        with open(rc_file, 'r') as f:
            code = compile(f.read(), rc_file, 'exec')
            six.exec_(code, namespace, namespace)

        # Now we should have a 'configure' method in this namespace. We call this
        # method with editor as an argument.
        if 'configure' in namespace:
            namespace['configure'](editor)

    except Exception as e:
        # Handle possible exceptions in rc file.
        traceback.print_exc()
        _press_enter_to_continue()

def run_strategy(source_code, strategy_filename, start_date, end_date, init_cash, data_bundle_path, show_progress):
    scope = {
        "logger": user_log,
        "print": user_print,
    }
    scope.update({export_name: getattr(api, export_name) for export_name in api.__all__})
    code = compile(source_code, strategy_filename, 'exec')
    exec_(code, scope)

    try:
        data_proxy = LocalDataProxy(data_bundle_path)
    except FileNotFoundError:
        print_("data bundle might crash. Run `%s update_bundle` to redownload data bundle." % sys.argv[0])
        sys.exit()

    trading_cal = data_proxy.get_trading_dates(start_date, end_date)
    Scheduler.set_trading_dates(data_proxy.get_trading_dates(start_date, datetime.date.today()))
    trading_params = TradingParams(trading_cal, start_date=start_date.date(), end_date=end_date.date(),
                                   init_cash=init_cash, show_progress=show_progress)

    executor = StrategyExecutor(
        init=scope.get("init", dummy_func),
        before_trading=scope.get("before_trading", dummy_func),
        handle_bar=scope.get("handle_bar", dummy_func),

        trading_params=trading_params,
        data_proxy=data_proxy,
    )

    results_df = executor.execute()

    return results_df

    def __load_from_path(cls, conf, path):
        if isdir(path):
            conf.config_folder = path
            files = sorted(os.listdir(path))

            for file in files:
                if file.endswith('.conf'):
                    filepath = path + os.sep + file
                    conf = Config.__load_from_path(conf, filepath)

            return conf

        with open(path) as config_file:
            name = 'configuration'
            code = config_file.read()
            module = imp.new_module(name)

            six.exec_(code, module.__dict__)

            conf.config_file = path

            for name, value in module.__dict__.items():
                if name.upper() == name:
                    conf._items[name] = value
                    setattr(conf, name, value)

            return conf

def compile_strategy(source_code, strategy, scope):
    try:
        code = compile(source_code, strategy, 'exec')
        six.exec_(code, scope)
        return scope
    except Exception as e:
        exc_type, exc_val, exc_tb = sys.exc_info()
        exc_val = patch_user_exc(exc_val, force=True)
        try:
            msg = str(exc_val)
        except Exception as e1:
            msg = ""
            six.print_(e1)

        error = CustomError()
        error.set_msg(msg)
        error.set_exc(exc_type, exc_val, exc_tb)
        stackinfos = list(traceback.extract_tb(exc_tb))

        if isinstance(e, (SyntaxError, IndentationError)):
            error.add_stack_info(exc_val.filename, exc_val.lineno, "", exc_val.text)
        else:
            for item in stackinfos:
                filename, lineno, func_name, code = item
                if strategy == filename:
                    error.add_stack_info(*item)
            # avoid empty stack
            if error.stacks_length == 0:
                error.add_stack_info(*item)

        raise CustomException(error)

    def verify(cls, path):
        if path is None:
            return []

        if not exists(path):
            raise ConfigurationError('Configuration file not found at path %s' % path)

        with open(path) as config_file:
            name = 'configuration'
            code = config_file.read()
            module = imp.new_module(name)

            six.exec_(code, module.__dict__)

            conf = cls(defaults=[])

            for name, value in module.__dict__.items():
                if name.upper() == name:
                    setattr(conf, name, value)

            not_found = []

            for key, value in cls.class_defaults.items():
                if key not in conf.__dict__:
                    not_found.append((key, value))

            return not_found

def execute_python_code(code):
    try:
        c = compile(code, '<string>', 'exec')
    except Exception:
        print('On execute_python_code with code=\n{}'.format(code))
        raise
    six.exec_(c)

 def load_module(self, name):
     co, pyc = self.modules.pop(name)
     if name in sys.modules:
         # If there is an existing module object named 'fullname' in
         # sys.modules, the loader must use that existing module. (Otherwise,
         # the reload() builtin will not work correctly.)
         mod = sys.modules[name]
     else:
         # I wish I could just call imp.load_compiled here, but __file__ has to
         # be set properly. In Python 3.2+, this all would be handled correctly
         # by load_compiled.
         mod = sys.modules[name] = imp.new_module(name)
     try:
         mod.__file__ = co.co_filename
         # Normally, this attribute is 3.2+.
         mod.__cached__ = pyc
         mod.__loader__ = self
         # Normally, this attribute is 3.4+
         mod.__spec__ = spec_from_file_location(name, co.co_filename, loader=self)
         six.exec_(co, mod.__dict__)
     except:  # noqa
         if name in sys.modules:
             del sys.modules[name]
         raise
     return sys.modules[name]

    def load_module(self, fullname):
        if self.mod is None:
            mod = self.mod = imp.new_module(self.name)
        else:
            mod = self.mod

        log_buffer = []
        mod.logging = mod.logger = logging.Logger(self.name)
        handler = SaveLogHandler(log_buffer)
        handler.setFormatter(LogFormatter(color=False))
        mod.logger.addHandler(handler)
        mod.log_buffer = log_buffer
        mod.__file__ = '<%s>' % self.name
        mod.__loader__ = self
        mod.__project__ = self.project
        mod.__package__ = ''

        code = self.get_code(fullname)
        six.exec_(code, mod.__dict__)
        linecache.clearcache()

        if '__handler_cls__' not in mod.__dict__:
            BaseHandler = mod.__dict__.get('BaseHandler', base_handler.BaseHandler)
            for each in list(six.itervalues(mod.__dict__)):
                if inspect.isclass(each) and each is not BaseHandler \
                        and issubclass(each, BaseHandler):
                    mod.__dict__['__handler_cls__'] = each

        return mod