Python sys.__stdout__() Examples

def get_terminal_size(fallback=(80, 24)):
    """
    Return tuple containing columns and rows of controlling terminal, trying harder
    than shutil.get_terminal_size to find a tty before returning fallback.

    Theoretically, stdout, stderr, and stdin could all be different ttys that could
    cause us to get the wrong measurements (instead of using the fallback) but the much more
    common case is that IO is piped.
    """
    for stream in [sys.__stdout__, sys.__stderr__, sys.__stdin__]:
        try:
            # Make WINSIZE call to terminal
            data = fcntl.ioctl(stream.fileno(), TIOCGWINSZ, b"\x00\x00\00\x00")
        except (IOError, OSError):
            pass
        else:
            # Unpack two shorts from ioctl call
            lines, columns = struct.unpack("hh", data)
            break
    else:
        columns, lines = fallback

    return columns, lines 

def test_and(self):
        code = "(and (do (print \"a\") 1) (do (print \"b\") 0) (do (print \"c\") 1))"
        tree = self.parser.parse_line(code)
        io = StringIO()
        sys.stdout = io
        result = self.runner.evaluate(tree[0])
        sys.stdout = sys.__stdout__
        self.assertEqual(result, 0)
        self.assertEqual(io.getvalue(), "a\nb\n")
        code = "(and True False True)"
        tree = self.parser.parse_line(code)
        result = self.runner.evaluate(tree[0])
        self.assertEqual(result, False)
        code = "(and True 1 4)"
        tree = self.parser.parse_line(code)
        result = self.runner.evaluate(tree[0])
        self.assertEqual(result, 4) 

def quit(self, *args):
        # restore stdout before signaling the run thread to exit!
        # it can get stuck in trying to dump to the redirected text message area
        sys.stdout = sys.__stdout__
        sys.stderr = sys.__stderr__
        
        try:
            self.display.quit()
        except:
            pass
        
        self.root.destroy()
        print "* All done!"
        # sys.exit() # force quit!
        
        return
    
    # ---------------------------------------------------------- 

def _check_docs(self, module):
        if self._skip:
            # Printing this directly to __stdout__ so that it doesn't get
            # captured by nose.
            print("Warning: Skipping doctests for %s because "
                  "pdbpp is installed." % module.__name__, file=sys.__stdout__)
            return
        try:
            doctest.testmod(
                module,
                verbose=True,
                raise_on_error=True,
                optionflags=self.flags,
            )
        except doctest.UnexpectedException as e:
            raise e.exc_info[1]
        except doctest.DocTestFailure as e:
            print("Got:")
            print(e.got)
            raise 

def configure_logging(debug):
    '''Sets the data kennel logger to appropriate levels of chattiness.'''
    default_logger = logging.getLogger('')
    datadog_logger = logging.getLogger('datadog.api')
    requests_logger = logging.getLogger('requests')
    if debug:
        default_logger.setLevel(logging.DEBUG)
        datadog_logger.setLevel(logging.INFO)
        requests_logger.setLevel(logging.INFO)
    else:
        default_logger.setLevel(logging.INFO)
        datadog_logger.setLevel(logging.WARNING)
        requests_logger.setLevel(logging.WARNING)

    stream_handler = logging.StreamHandler(sys.__stdout__)
    stream_handler.setLevel(logging.DEBUG)
    stream_handler.setFormatter(logging.Formatter('%(asctime)s %(name)s %(levelname)s %(message)s'))
    default_logger.addHandler(stream_handler) 

def doItConsolicious(opt):
    # reclaim stdout/stderr from log
    sys.stdout = sys.__stdout__
    sys.stderr = sys.__stderr__
    if opt['zipfile']:
        print 'Unpacking documentation...'
        for n in zipstream.unzipIter(opt['zipfile'], opt['ziptargetdir']):
            if n % 100 == 0:
                print n,
            if n % 1000 == 0:
                print
        print 'Done unpacking.'
        
    if opt['compiledir']:
        print 'Compiling to pyc...'
        import compileall
        compileall.compile_dir(opt["compiledir"])
        print 'Done compiling.' 

def test_main_function(self):

        # List files
        file_list = [os.path.join(test_fold, f) for f in self._input_files]

        # Output to string
        with io.StringIO() as io_stream:
            sys.stdout = io_stream
            hpp2plantuml.CreatePlantUMLFile(file_list)
            io_stream.seek(0)
            # Read string output, exclude final line return
            output_str = io_stream.read()[:-1]
        sys.stdout = sys.__stdout__
        nt.assert_equal(self._diag_saved_ref, output_str)

        # Output to file
        output_fname = 'output.puml'
        hpp2plantuml.CreatePlantUMLFile(file_list, output_fname)
        output_fcontent = ''
        with open(output_fname, 'rt') as fid:
            output_fcontent = fid.read()
        nt.assert_equal(self._diag_saved_ref, output_fcontent)
        os.unlink(output_fname) 

def become_daemon(self, root_dir='/'):
        if os.fork() != 0:  # launch child and ...
            os._exit(0)  # kill off parent
        os.setsid()
        os.chdir(root_dir)
        os.umask(0)
        if os.fork() != 0: # fork again so we are not a session leader
            os._exit(0)
        sys.stdin.close()
        sys.__stdin__ = sys.stdin
        sys.stdout.close()
        sys.stdout = sys.__stdout__ = _NullDevice()
        sys.stderr.close()
        sys.stderr = sys.__stderr__ = _NullDevice()
        for fd in range(1024):
            try:
                os.close(fd)
            except OSError:
                pass 

def find_pep8_errors(cls, filename=None, lines=None):
        try:
            sys.stdout = cStringIO.StringIO()
            config = {}

            # Ignore long lines on test files, as the test names can get long
            # when following our test naming standards.
            if cls._is_test(filename):
                config['ignore'] = ['E501']

            checker = pep8.Checker(filename=filename, lines=lines,
                                   **config)
            checker.check_all()
            output = sys.stdout.getvalue()
        finally:
            sys.stdout = sys.__stdout__

        errors = []
        for line in output.split('\n'):
            parts = line.split(' ', 2)
            if len(parts) == 3:
                location, error, desc = parts
                line_no = location.split(':')[1]
                errors.append('%s ln:%s %s' % (error, line_no, desc))
        return errors 

def emit_func(func, o=sys.__stdout__, d = init()):
    """Emits all items in the data store in a format such that it can be sourced by a shell."""

    keys = (key for key in d.keys() if not key.startswith("__") and not d.getVarFlag(key, "func", False))
    for key in keys:
        emit_var(key, o, d, False)

    o.write('\n')
    emit_var(func, o, d, False) and o.write('\n')
    newdeps = bb.codeparser.ShellParser(func, logger).parse_shell(d.getVar(func, True))
    newdeps |= set((d.getVarFlag(func, "vardeps", True) or "").split())
    seen = set()
    while newdeps:
        deps = newdeps
        seen |= deps
        newdeps = set()
        for dep in deps:
            if d.getVarFlag(dep, "func", False) and not d.getVarFlag(dep, "python", False):
               emit_var(dep, o, d, False) and o.write('\n')
               newdeps |=  bb.codeparser.ShellParser(dep, logger).parse_shell(d.getVar(dep, True))
               newdeps |= set((d.getVarFlag(dep, "vardeps", True) or "").split())
        newdeps -= seen 

def pkt_verify(parent, rcv_pkt, exp_pkt):
    if str(exp_pkt) != str(rcv_pkt):
        logging.error("ERROR: Packet match failed.")
        logging.debug("Expected (" + str(len(exp_pkt)) + ")")
        logging.debug(str(exp_pkt).encode('hex'))
        sys.stdout = tmpout = StringIO()
        exp_pkt.show()
        sys.stdout = sys.__stdout__
        logging.debug(tmpout.getvalue())
        logging.debug("Received (" + str(len(rcv_pkt)) + ")")
        logging.debug(str(rcv_pkt).encode('hex'))
        sys.stdout = tmpout = StringIO()
        Ether(rcv_pkt).show()
        sys.stdout = sys.__stdout__
        logging.debug(tmpout.getvalue())
    parent.assertEqual(str(exp_pkt), str(rcv_pkt),
                       "Packet match error")
    
    return rcv_pkt 

def doItConsolicious(opt):
    # reclaim stdout/stderr from log
    sys.stdout = sys.__stdout__
    sys.stderr = sys.__stderr__
    if opt['zipfile']:
        print 'Unpacking documentation...'
        for n in zipstream.unzipIter(opt['zipfile'], opt['ziptargetdir']):
            if n % 100 == 0:
                print n,
            if n % 1000 == 0:
                print
        print 'Done unpacking.'
        
    if opt['compiledir']:
        print 'Compiling to pyc...'
        import compileall
        compileall.compile_dir(opt["compiledir"])
        print 'Done compiling.' 

def shutdown(self, c):
        '''
        Shutdown this process
        '''
        try:
            try:
                util.debug('manager received shutdown message')
                c.send(('#RETURN', None))

                if sys.stdout != sys.__stdout__:
                    util.debug('resetting stdout, stderr')
                    sys.stdout = sys.__stdout__
                    sys.stderr = sys.__stderr__

                util._run_finalizers(0)

                for p in active_children():
                    util.debug('terminating a child process of manager')
                    p.terminate()

                for p in active_children():
                    util.debug('terminating a child process of manager')
                    p.join()

                util._run_finalizers()
                util.info('manager exiting with exitcode 0')
            except:
                import traceback
                traceback.print_exc()
        finally:
            exit(0) 

def __dir__(self):
        return dir(sys.__stdout__) 

def __getattribute__(self, name):
        if name == '__members__':
            return dir(sys.__stdout__)
        try:
            stream = _local.stream
        except AttributeError:
            stream = sys.__stdout__
        return getattr(stream, name) 

def __repr__(self):
        return repr(sys.__stdout__)


# add the threaded stream as display hook 

def execute(self, context):

        if not hasattr(bpy, "wow_game_data"):
            print("\n\n### Loading game data ###")
            bpy.ops.scene.load_wow_filesystem()

        game_data = bpy.wow_game_data

        for ob in bpy.context.selected_objects:
            mesh = ob.data
            for i in range(len(mesh.materials)):
                if mesh.materials[i].active_texture is not None \
                        and not mesh.materials[i].WowMaterial.Texture1 \
                        and mesh.materials[i].active_texture.type == 'IMAGE' \
                        and mesh.materials[i].active_texture.image is not None:
                    path = (os.path.splitext(bpy.path.abspath(mesh.materials[i].active_texture.image.filepath))[0] + ".blp", "")
                    rest_path = ""

                    while True:
                        path = os.path.split(path[0])
                        if not path[1]:
                            print("\nTexture <<{}>> not found.".format(mesh.materials[i].active_texture.image.filepath))
                            break

                        rest_path = os.path.join(path[1], rest_path)
                        rest_path = rest_path[:-1] if rest_path.endswith("\\") else rest_path

                        sys.stdout = open(os.devnull, 'w')

                        if game_data.read_file(rest_path):
                            mesh.materials[i].WowMaterial.Texture1 = rest_path
                            break

                        sys.stdout = sys.__stdout__

            self.report({'INFO'}, "Done filling texture paths")

        return {'FINISHED'} 

def __init__(self, log, prefix = ""):
		self.console = sys.__stdout__
		self.log = log
		self.prefix = prefix 

def init(ctx):
	global LOGFILE
	filename = os.path.abspath(LOGFILE)
	try:
		os.makedirs(os.path.dirname(os.path.abspath(filename)))
	except OSError:
		pass

	if hasattr(os, 'O_NOINHERIT'):
		fd = os.open(LOGFILE, os.O_CREAT | os.O_TRUNC | os.O_WRONLY | os.O_NOINHERIT)
		fileobj = os.fdopen(fd, 'w')
	else:
		fileobj = open(LOGFILE, 'w')
	old_stderr = sys.stderr

	# sys.stdout has already been replaced, so __stdout__ will be faster
	#sys.stdout = log_to_file(sys.stdout, fileobj, filename)
	#sys.stderr = log_to_file(sys.stderr, fileobj, filename)
	def wrap(stream):
		if stream.isatty():
			return ansiterm.AnsiTerm(stream)
		return stream
	sys.stdout = log_to_file(wrap(sys.__stdout__), fileobj, filename)
	sys.stderr = log_to_file(wrap(sys.__stderr__), fileobj, filename)

	# now mess with the logging module...
	for x in Logs.log.handlers:
		try:
			stream = x.stream
		except AttributeError:
			pass
		else:
			if id(stream) == id(old_stderr):
				x.stream = sys.stderr 

def init(ctx):
	global LOGFILE
	filename = os.path.abspath(LOGFILE)
	try:
		os.makedirs(os.path.dirname(os.path.abspath(filename)))
	except OSError:
		pass

	if hasattr(os, 'O_NOINHERIT'):
		fd = os.open(LOGFILE, os.O_CREAT | os.O_TRUNC | os.O_WRONLY | os.O_NOINHERIT)
		fileobj = os.fdopen(fd, 'w')
	else:
		fileobj = open(LOGFILE, 'w')
	old_stderr = sys.stderr

	# sys.stdout has already been replaced, so __stdout__ will be faster
	#sys.stdout = log_to_file(sys.stdout, fileobj, filename)
	#sys.stderr = log_to_file(sys.stderr, fileobj, filename)
	def wrap(stream):
		if stream.isatty():
			return ansiterm.AnsiTerm(stream)
		return stream
	sys.stdout = log_to_file(wrap(sys.__stdout__), fileobj, filename)
	sys.stderr = log_to_file(wrap(sys.__stderr__), fileobj, filename)

	# now mess with the logging module...
	for x in Logs.log.handlers:
		try:
			stream = x.stream
		except AttributeError:
			pass
		else:
			if id(stream) == id(old_stderr):
				x.stream = sys.stderr 

def init(ctx):
	global LOGFILE
	filename = os.path.abspath(LOGFILE)
	try:
		os.makedirs(os.path.dirname(os.path.abspath(filename)))
	except OSError:
		pass

	if hasattr(os, 'O_NOINHERIT'):
		fd = os.open(LOGFILE, os.O_CREAT | os.O_TRUNC | os.O_WRONLY | os.O_NOINHERIT)
		fileobj = os.fdopen(fd, 'w')
	else:
		fileobj = open(LOGFILE, 'w')
	old_stderr = sys.stderr

	# sys.stdout has already been replaced, so __stdout__ will be faster
	#sys.stdout = log_to_file(sys.stdout, fileobj, filename)
	#sys.stderr = log_to_file(sys.stderr, fileobj, filename)
	sys.stdout = log_to_file(sys.__stdout__, fileobj, filename)
	sys.stderr = log_to_file(sys.__stderr__, fileobj, filename)

	# now mess with the logging module...
	for x in Logs.log.handlers:
		try:
			stream = x.stream
		except AttributeError:
			pass
		else:
			if id(stream) == id(old_stderr):
				x.stream = sys.stderr 

def __dir__(self):
        return dir(sys.__stdout__) 

def __getattribute__(self, name):
        if name == '__members__':
            return dir(sys.__stdout__)
        try:
            stream = _local.stream
        except AttributeError:
            stream = sys.__stdout__
        return getattr(stream, name) 

def __repr__(self):
        return repr(sys.__stdout__)


# add the threaded stream as display hook 

def handle(self, *args, **options):
		if (options['reset_db']):
			call_command('cleardatabase')

		print("Grammar objects initially in database: {}".format(Grammar.objects.count()))
		#Number of randomly generated grammars
		num = options['num']

		#Number variables this run will include. 
		#For example [2,3] will run the script to generate
		#grammars with 2 variables and 3 variables
		nVariables = [2, 3]

		nonTerminals = ['A','B','C','D']
		terminals = ['x','y','z','w']



		if options['silent']:
			sys.stdout = open(os.devnull, "w")

		for n in nVariables:
			start_time = time.time()
			mg = MassGrammarGenerator.MassGrammarGenerator(n)
			mg.run(num,nonTerminals[:n],terminals)
			print("{}Variables: {} seconds---".format(n,(time.time() - start_time)))

		if options['silent']:
			sys.stdout = sys.__stdout__
		
		print("Grammar objects finally in database: {}".format(Grammar.objects.count())) 

def __dir__(self):
        return dir(sys.__stdout__) 

def __getattribute__(self, name):
        if name == '__members__':
            return dir(sys.__stdout__)
        try:
            stream = _local.stream
        except AttributeError:
            stream = sys.__stdout__
        return getattr(stream, name) 

def __repr__(self):
        return repr(sys.__stdout__)


# add the threaded stream as display hook 

def quiet():
    # save stdout/stderr
    # Jupyter doesn't support setting it back to
    # sys.__stdout__ and sys.__stderr__
    _sys_stdout = sys.stdout
    _sys_stderr = sys.stderr
    # Divert stdout and stderr to devnull
    sys.stdout = sys.stderr = open(os.devnull, "w")
    try:
        yield
    finally:
        # Revert back to standard stdout/stderr
        sys.stdout = _sys_stdout
        sys.stderr = _sys_stderr 

def _finalize(self):
        sys.stdout = sys.__stdout__
        logging.root.removeHandler(self._log_handler)
        self._log_handler.close()
        logger.info('Jupyter window finalized successfully') 

def plot_compute_node(self):
        tag = 'compute'
        redirected = False
        if sys.stdout == sys.__stdout__:
            self.outfile = open(self.compute_dot_file, "w")
            sys.stdout = self.outfile
            redirected = True
            self.__digraph_open(tag)

        # Title
        self.__cluster_open('ComputeNode', 'red')
        self.__cluster_name('Compute Node', 1, 'yellow')
        self.__cluster_close()

        # Plot nodes
        self.__cluster_open_plain('Nova')
        self.__plot_vms()
        self.__plot_linux_bridge()
        self.__cluster_close_plain()

        self.__cluster_open_plain('OVS')
        self.__plot_br_int_compute()
        self.__plot_br_tun(tag)
        self.__cluster_close_plain()

        # Plot edges
        self.__plot_title_edges(tag)
        self.__plot_vms_to_linuxbridge()
        self.__plot_linuxbridge_to_br_int()
        self.__plot_br_int_to_br_tun(tag)

        if redirected:
            self.__digraph_close()
            self.outfile.close()
            sys.stdout = sys.__stdout__ 

def plot_network_node(self):
        tag = 'network'
        redirected = False
        if sys.stdout == sys.__stdout__:
            self.outfile = open(self.network_dot_file, "w")
            sys.stdout = self.outfile
            redirected = True
            self.__digraph_open(tag)

        self.__cluster_open('NetworkNode', 'red')
        self.__cluster_name('Network Node', 1, 'yellow')
        self.__cluster_close()

        # Plot nodes
        self.__cluster_open_plain('OVS')
        self.__plot_br_ex_network()
        self.__plot_br_int_network()
        self.__plot_br_tun(tag)
        self.__cluster_close_plain()

        # Plot edges
        self.__plot_title_edges(tag)
        self.__plot_br_int_to_br_tun(tag)
        self.__plot_br_ex_to_br_int()

        if redirected:
            self.__digraph_close()
            self.outfile.close()
            sys.stdout = sys.__stdout__ 

def debug(msg):
    if settings['debug']:
        if sys.stdout != sys.__stdout__:
            tmp = sys.stdout
            sys.stdout = sys.__stdout__
            print('DEBUG: ' + msg)
            sys.stdout = tmp
        else:
            print('DEBUG: ' + msg) 

def error(msg):
    if sys.stdout != sys.__stdout__:
        tmp = sys.stdout
        sys.stdout = sys.__stdout__
        print('ERROR: ' + msg)
        sys.stdout = tmp
    else:
        print('ERROR: ' + msg) 

def warning(msg):
    if sys.stdout != sys.__stdout__:
        tmp = sys.stdout
        sys.stdout = sys.__stdout__
        print('WARNING: ' + msg)
        sys.stdout = tmp
    else:
        print('WARNING: ' + msg) 

def set_trace():
    """Call pdb.set_trace in the calling frame, first restoring
    sys.stdout to the real output stream. Note that sys.stdout is NOT
    reset to whatever it was before the call once pdb is done!
    """
    import pdb
    import sys
    stdout = sys.stdout
    sys.stdout = sys.__stdout__
    pdb.Pdb().set_trace(sys._getframe().f_back) 

def parseArgs(self, argv):
        """Parse argv and env and configure running environment.
        """
        self.config.configure(argv, doc=self.usage())
        log.debug("configured %s", self.config)

        # quick outs: version, plugins (optparse would have already
        # caught and exited on help)
        if self.config.options.version:
            from nose import __version__
            sys.stdout = sys.__stdout__
            print "%s version %s" % (os.path.basename(sys.argv[0]), __version__)
            sys.exit(0)

        if self.config.options.showPlugins:
            self.showPlugins()
            sys.exit(0)

        if self.testLoader is None:
            self.testLoader = defaultTestLoader(config=self.config)
        elif isclass(self.testLoader):
            self.testLoader = self.testLoader(config=self.config)
        plug_loader = self.config.plugins.prepareTestLoader(self.testLoader)
        if plug_loader is not None:
            self.testLoader = plug_loader
        log.debug("test loader is %s", self.testLoader)

        # FIXME if self.module is a string, add it to self.testNames? not sure

        if self.config.testNames:
            self.testNames = self.config.testNames
        else:
            self.testNames = tolist(self.defaultTest)
        log.debug('defaultTest %s', self.defaultTest)
        log.debug('Test names are %s', self.testNames)
        if self.config.workingDir is not None:
            os.chdir(self.config.workingDir)
        self.createTests() 

def __init__(self, string):
        self.stdout = sys.__stdout__
        self.appends = ''
        self.prepends = ''
        self.isatty = self.stdout.isatty() 

def test_task(self):

        class AddTask(Task):

            addend_a = properties.Float('First add argument')
            addend_b = properties.Float('Second add argument')

            class Result(BaseResult):
                value = properties.Float('Result of add operation')

            def __call__(self):
                self.report_status({'progress': 0., 'message': 'Starting'})
                if self.addend_a == self.addend_b:
                    raise PermanentTaskFailure()
                return self.Result(value=self.addend_a + self.addend_b)

        add = AddTask(addend_a=0., addend_b=10.)

        sys.stdout = temp_out = StringIO()
        result = add()
        sys.stdout = sys.__stdout__
        assert temp_out.getvalue() == 'AddTask |   0% | Starting\n'
        assert result.value == 10.

        add = AddTask(addend_a=5., addend_b=5.)
        with self.assertRaises(PermanentTaskFailure):
            add()

        with self.assertRaises(NotImplementedError):
            Task()()

        with self.assertRaises(ValueError):
            Task().report_status(.5) 

def __dir__(self):
        return dir(sys.__stdout__) 

def __getattribute__(self, name):
        if name == '__members__':
            return dir(sys.__stdout__)
        try:
            stream = _local.stream
        except AttributeError:
            stream = sys.__stdout__
        return getattr(stream, name) 

def __repr__(self):
        return repr(sys.__stdout__)


# add the threaded stream as display hook 

def __dir__(self):
        return dir(sys.__stdout__) 

def __getattribute__(self, name):
        if name == '__members__':
            return dir(sys.__stdout__)
        try:
            stream = _local.stream
        except AttributeError:
            stream = sys.__stdout__
        return getattr(stream, name) 

def write(self, data):
        try:
            self.inner_file.write(data)
        except:
            sys.stdout = sys.__stdout__
            log.DefaultObserver.stderr = sys.stderr = sys.__stderr__
            raise 

def tearDown(self):
        sys.stdout = sys.__stdout__
        sys.stdin = sys.__stdin__ 

def __dir__(self):
        return dir(sys.__stdout__) 

def __getattribute__(self, name):
        if name == '__members__':
            return dir(sys.__stdout__)
        try:
            stream = _local.stream
        except AttributeError:
            stream = sys.__stdout__
        return getattr(stream, name) 

def __repr__(self):
        return repr(sys.__stdout__)


# add the threaded stream as display hook 

def __dir__(self):
        return dir(sys.__stdout__)