Python subprocess.STARTF_USESHOWWINDOW Examples

def command_version(command):
    """
    Uses subprocess to format a given string.
    """

    startupinfo = None

    if platform == "windows":
        # Prevent cmd.exe window from popping up
        startupinfo = subprocess.STARTUPINFO()
        startupinfo.dwFlags |= (
            subprocess.STARTF_USESTDHANDLES | subprocess.STARTF_USESHOWWINDOW
        )
        startupinfo.wShowWindow = subprocess.SW_HIDE

    std = subprocess.Popen(
        [command, "--version"],
        env=calculate_env(),
        stdin=subprocess.PIPE,
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
        startupinfo=startupinfo
    )
    out, err = std.communicate()
    return out.decode("utf-8").replace("\r", ""), err 

def execute_command(command, working_dir=None):
    startupinfo = None
    # hide console window on windows
    if os.name == 'nt':
        startupinfo = subprocess.STARTUPINFO()
        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW

    output = None
    try:
        output = subprocess.check_output(
            command,
            cwd=working_dir,
            startupinfo=startupinfo
        )
    except (subprocess.CalledProcessError, AttributeError):
        # Git will return an error when the given directory
        # is not a repository, which means that we can ignore this error
        pass
    else:
        output = str(output, encoding="utf-8").strip()

    return output 

def subprocess_args(include_stdout=True):
    if hasattr(subprocess, 'STARTUPINFO'):
        si = subprocess.STARTUPINFO()
        si.dwFlags |= subprocess.STARTF_USESHOWWINDOW
        env = os.environ
    else:
        si = None
        env = None

    if include_stdout:
        ret = {'stdout:': subprocess.PIPE}
    else:
        ret = {}

    ret.update({'stdin': subprocess.PIPE,
                'stderr': subprocess.PIPE,
                'startupinfo': si,
                'env': env })
    return ret

#Function to get the Process ID 

def get_process(cmd):
    """Get a command process."""

    if sys.platform.startswith('win'):
        startupinfo = subprocess.STARTUPINFO()
        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
        process = subprocess.Popen(
            cmd,
            startupinfo=startupinfo,
            stdout=subprocess.PIPE,
            stderr=subprocess.STDOUT,
            stdin=subprocess.PIPE,
            shell=False
        )
    else:
        process = subprocess.Popen(
            cmd,
            stdout=subprocess.PIPE,
            stderr=subprocess.STDOUT,
            stdin=subprocess.PIPE,
            shell=False
        )
    return process 

def _popen_kwargs(prevent_sigint=False):
    startupinfo = None
    preexec_fn = None
    creationflags = 0
    if sys.platform.startswith("win"):
        # Stops executable from flashing on Windows (see #22)
        startupinfo = subprocess.STARTUPINFO()
        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
    if prevent_sigint:
        # Prevent propagation of sigint (see #4)
        # https://stackoverflow.com/questions/5045771
        if sys.platform.startswith("win"):
            creationflags = 0x00000200
        else:
            preexec_fn = os.setpgrp  # the _pre_exec does not seem to work
    return {
        "startupinfo": startupinfo,
        "creationflags": creationflags,
        "preexec_fn": preexec_fn,
    } 

def subprocess_args(include_stdout=True):
    if hasattr(subprocess, 'STARTUPINFO'):
        si = subprocess.STARTUPINFO()
        si.dwFlags |= subprocess.STARTF_USESHOWWINDOW
        env = os.environ
    else:
        si = None
        env = None

    if include_stdout:
        ret = {'stdout': subprocess.PIPE}
    else:
        ret = {}

    ret.update({'stdin': subprocess.PIPE,
                'stderr': subprocess.PIPE,
                'startupinfo': si,
                'env': env })
    return ret 

def __init__(self, url, dest, progress_bar=False):
        self.url = url
        self.dest = dest
        self.hash_type = None
        self.hash_value = None
        self.process = None
        self.secret = ''.join(format(ord(x), 'x') for x in os.urandom(10))
        self.gid = 'DEADC0D9BEEFFACE'

        self.status = None
        self.failed = False
        self.failure = None

        self.ariaStatus = {}
        self.gid = None
        if platform.system()=='Darwin':
            self.aria_stdout = None
            self.startupinfo = None
        else:
            self.aria_stdout = None
            self.startupinfo = subprocess.STARTUPINFO()
            self.startupinfo.dwFlags = subprocess.CREATE_NEW_CONSOLE | subprocess.STARTF_USESHOWWINDOW
            self.startupinfo.wShowWindow = subprocess.SW_HIDE 

def _popen_kwargs(prevent_sigint=False):
    startupinfo = None
    preexec_fn = None
    creationflags = 0
    if sys.platform.startswith("win"):
        # Stops executable from flashing on Windows (see imageio/imageio-ffmpeg#22)
        startupinfo = subprocess.STARTUPINFO()
        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
    if prevent_sigint:
        # Prevent propagation of sigint (see imageio/imageio-ffmpeg#4)
        # https://stackoverflow.com/questions/5045771
        if sys.platform.startswith("win"):
            creationflags = 0x00000200
        else:
            preexec_fn = os.setpgrp  # the _pre_exec does not seem to work
    return {
        "startupinfo": startupinfo,
        "creationflags": creationflags,
        "preexec_fn": preexec_fn,
    } 

def run_cli(script_name, **parameters):
    """Run the CLI in a subprocess without showing windows"""
    startupinfo = subprocess.STARTUPINFO()
    startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW

    command = [get_python_exe(), '-u', '-m', 'cea.interfaces.cli.cli', script_name]
    for parameter_name, parameter_value in parameters.items():
        parameter_name = parameter_name.replace('_', '-')
        command.append('--' + parameter_name)
        command.append(str(parameter_value))
    print('Executing: ' + ' '.join(command))
    process = subprocess.Popen(command, startupinfo=startupinfo, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
                               cwd=tempfile.gettempdir())
    while True:
        next_line = process.stdout.readline()
        if next_line == '' and process.poll() is not None:
            break
        print(next_line.rstrip())
    stdout, stderr = process.communicate()
    print(stdout)
    print(stderr)
    if process.returncode != 0:
        raise Exception('Tool did not run successfully') 

def __init__(self, command: List[str], cwd: Optional[str]):
		# taken from Default/exec.py
		# Hide the console window on Windows
		startupinfo = None
		if os.name == "nt":
			startupinfo = subprocess.STARTUPINFO() #type: ignore
			startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW #type: ignore

		super().__init__(command,
			stdout=subprocess.PIPE,
			stderr=subprocess.PIPE,
			stdin=subprocess.PIPE,
			shell=False,
			bufsize=0,
			startupinfo=startupinfo,
			cwd = cwd)

		self.closed = False 

def _runEngineProcess(self, command_list) -> Optional[subprocess.Popen]:
        """Start the (external) backend process."""

        kwargs = {} #type: Dict[str, Any]
        if sys.platform == "win32":
            su = subprocess.STARTUPINFO()
            su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
            su.wShowWindow = subprocess.SW_HIDE
            kwargs["startupinfo"] = su
            kwargs["creationflags"] = 0x00004000  # BELOW_NORMAL_PRIORITY_CLASS
        try:
            # STDIN needs to be None because we provide no input, but communicate via a local socket instead. The NUL device sometimes doesn't exist on some computers.
            # STDOUT and STDERR need to be pipes because we'd like to log the output on those channels into the application log.
            return subprocess.Popen(command_list, stdin = None, stdout = subprocess.PIPE, stderr = subprocess.PIPE, **kwargs)
        except PermissionError:
            Logger.log("e", "Couldn't start back-end: No permission to execute process.")
        except FileNotFoundError:
            Logger.logException("e", "Unable to find backend executable: %s", command_list[0])
        except BlockingIOError:
            Logger.log("e", "Couldn't start back-end: Resource is temporarily unavailable")
        except OSError as e:
            Logger.log("e", "Couldn't start back-end: Operating system is blocking it (antivirus?): {err}".format(err = str(e)))
        return None 

def __init__(self, shell_cmd):
		if not shell_cmd:
			raise ValueError("shell_cmd is required")

		if shell_cmd and not isinstance(shell_cmd, str):
			raise ValueError("shell_cmd must be a string")

		self.killed = False

		# Hide the console window on Windows
		startupinfo = None
		if os.name == "nt":
			startupinfo = subprocess.STARTUPINFO()
			#startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW

	   
		print (shell_cmd)
		if sys.platform == "win32":
			# Use shell=True on Windows, so shell_cmd is passed through with the correct escaping
			self.proc = subprocess.Popen(shell_cmd, startupinfo=startupinfo, shell=True)
		elif shell_cmd and sys.platform == "darwin":
			# Use a login shell on OSX, otherwise the users expected env vars won't be setup
			self.proc = subprocess.Popen(["/bin/bash", "-l", "-c", shell_cmd], startupinfo=startupinfo, shell=False)

		self.proc.wait() 

def run(self):
        if self.type is "ffmpeg":
            self.cmds.insert(0, ffmpeg_path)
        else:
            self.cmds.insert(0, ffprobe_path)

        qgsu.showUserAndLogMessage("", "starting Splitter on thread:" + str(threading.current_thread().ident), onlyLog=True)
        qgsu.showUserAndLogMessage("", "with args:" + ' '.join(self.cmds), onlyLog=True)

        # Hide shell windows that pops up on windows.
        if windows:
            startupinfo = subprocess.STARTUPINFO()
            startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
            startupinfo.wShowWindow = subprocess.SW_HIDE

        self.p = subprocess.Popen(self.cmds, startupinfo=startupinfo, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE)
        # Dont us _spawn here as it will DeadLock, and the splitter won't work
        #self.p = _spawn(self.cmds)
        self.nbsr = NonBlockingStreamReader(self.p)
        self.nbsr._t.join()
        qgsu.showUserAndLogMessage("", "Splitter thread ended.", onlyLog=True) 

def run(cmd):
    if sys.platform == 'win32':
      startupinfo = subprocess.STARTUPINFO()
      startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
    else:
      startupinfo = None
    p = subprocess.Popen(cmd, shell=False, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, startupinfo=startupinfo)
    #logtext.insert(END, "Cmd>")
    #for s in cmd:
    #    logtext.insert(END, " " + s)
    #logtext.insert(END, "\r\n")
    stdout = ''
    while True:
        line = str(p.stdout.readline(), encoding='UTF-8')
        stdout += line
        #logtext.insert(END, line)
        #logtext.yview(END)
        curstat = p.poll()
        if ((line == '') and (curstat != None)):
            break
    return stdout 

def get_provider(vmrun_exe):
    """
    identifies the right hosttype for vmrun command (ws | fusion | player)
    """

    if sys.platform == 'darwin':
        return 'fusion'

    for provider in ['ws', 'player', 'fusion']:
        try:
            startupinfo = None
            if os.name == "nt":
                startupinfo = subprocess.STARTUPINFO()
                startupinfo.dwFlags |= subprocess.SW_HIDE | subprocess.STARTF_USESHOWWINDOW
            proc = subprocess.Popen([vmrun_exe, '-T', provider, 'list'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, startupinfo=startupinfo)
        except OSError:
            pass

        stdoutdata, stderrdata = map(b2s, proc.communicate())
        if proc.returncode == 0:
            return provider 

def tar_cmd(*args, **kwargs):
    try:
        startupinfo = None
        if os.name == "nt":
            startupinfo = subprocess.STARTUPINFO()
            startupinfo.dwFlags |= subprocess.SW_HIDE | subprocess.STARTF_USESHOWWINDOW
        proc = subprocess.Popen(['tar', '--help'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, startupinfo=startupinfo)
    except OSError:
        return None
    if proc.returncode:
        return None
    stdoutdata, stderrdata = map(b2s, proc.communicate())
    tar = ['tar']
    if kwargs.get('wildcards') and re.search(r'--wildcards\b', stdoutdata):
        tar.append('--wildcards')
    if kwargs.get('force_local') and re.search(r'--force-local\b', stdoutdata):
        tar.append('--force-local')
    if kwargs.get('fast_read') and sys.platform.startswith('darwin'):
        tar.append('--fast-read')
    tar.extend(args)
    return tar 

def _execute(self, args):
        # ugly method that should be refactored at some point
        path, args = [i.strip() for i in args.split('"') if i if not i.isspace()] if args.count('"') == 2 else [i for i in args.partition(' ') if i if not i.isspace()]
        args = [path] + args.split()
        if os.path.isfile(path):
            name = os.path.splitext(os.path.basename(path))[0]
            try:
                info = subprocess.STARTUPINFO()
                info.dwFlags = subprocess.STARTF_USESHOWWINDOW ,  subprocess.CREATE_NEW_ps_GROUP
                info.wShowWindow = subprocess.SW_HIDE
                self.child_procs[name] = subprocess.Popen(args, startupinfo=info)
                return "Running '{}' in a hidden process".format(path)
            except Exception as e:
                try:
                    self.child_procs[name] = subprocess.Popen(args, 0, None, None, subprocess.PIPE, subprocess.PIPE)
                    return "Running '{}' in a new process".format(name)
                except Exception as e:
                    util.log("{} error: {}".format(self._execute.__name__, str(e)))
        else:
            return "File '{}' not found".format(str(path)) 

def _execute(self, args):
        # ugly method that should be refactored at some point
        path, args = [i.strip() for i in args.split('"') if i if not i.isspace()] if args.count('"') == 2 else [i for i in args.partition(' ') if i if not i.isspace()]
        args = [path] + args.split()
        if os.path.isfile(path):
            name = os.path.splitext(os.path.basename(path))[0]
            try:
                info = subprocess.STARTUPINFO()
                info.dwFlags = subprocess.STARTF_USESHOWWINDOW ,  subprocess.CREATE_NEW_ps_GROUP
                info.wShowWindow = subprocess.SW_HIDE
                self.child_procs[name] = subprocess.Popen(args, startupinfo=info)
                return "Running '{}' in a hidden process".format(path)
            except Exception as e:
                try:
                    self.child_procs[name] = subprocess.Popen(args, 0, None, None, subprocess.PIPE, subprocess.PIPE)
                    return "Running '{}' in a new process".format(name)
                except Exception as e:
                    util.log("{} error: {}".format(self.execute.__name__, str(e)))
        else:
            return "File '{}' not found".format(str(path)) 

def __init__(self, *args, **keys):
            if 'startupinfo' not in keys:
                si = subprocess.STARTUPINFO()
                si.dwFlags |= subprocess.STARTF_USESHOWWINDOW
                keys['startupinfo'] = si
            cls.__init__(self, *args, **keys) 

def __init__(self, *args, **kargs):
            startupinfo = subprocess.STARTUPINFO()
            startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
            kargs["startupinfo"] = startupinfo
            super().__init__(*args, **kargs) 

def __configure_subprocess(self):
        '''Prevent subprocess module failure in frozen scripts on Windows.
           Prevent console windows from popping up when not console based.
           Make sure we use the version-specific string types.
        '''
        # On Windows, sys.stdxxx may not be available when:
        # - built as *.exe with "pyinstaller --noconsole"
        # - invoked via CreateProcess() and stream not redirected
        try:
            sys.__stdin__.fileno()
            self._stdin = sys.stdin
        except BaseException:
            self._stdin = PIPE
        try:
            sys.__stdout__.fileno()
            self._stdout = sys.stdout
        except BaseException:
            self._stdout = PIPE
        try:
            sys.__stderr__.fileno()
            self._stderr = sys.stderr
        # keep subprocesses from opening their own console.
        except BaseException:
            self._stderr = PIPE
        if hasattr(subprocess, 'STARTUPINFO'):
            si = subprocess.STARTUPINFO()
            si.dwFlags |= subprocess.STARTF_USESHOWWINDOW
            self._pipeargs = {'startupinfo': si}
        else:
            self._pipeargs = {}
        # type names vary between Py2.7 and 3.x
        self._strtypes = (type(b''), type(u'')) 

def start_process(process_args, wait=True, cwd=None):
	"""
	Start a subprocess and optionally wait for it to finish. If not **wait**, a
	handle to the subprocess is returned instead of ``True`` when it exits
	successfully. This function differs from :py:func:`.run_process` in that it
	optionally waits for the subprocess to finish, and can return a handle to
	it.

	:param tuple process_args: The arguments for the processes including the binary.
	:param bool wait: Whether or not to wait for the subprocess to finish before returning.
	:param str cwd: The optional current working directory.
	:return: If **wait** is set to True, then a boolean indication success is returned, else a handle to the subprocess is returened.
	"""
	cwd = cwd or os.getcwd()
	if isinstance(process_args, str):
		process_args = shlex.split(process_args)
	close_fds = True
	startupinfo = None
	preexec_fn = None if wait else getattr(os, 'setsid', None)
	if sys.platform.startswith('win'):
		close_fds = False
		startupinfo = subprocess.STARTUPINFO()
		startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
		startupinfo.wShowWindow = subprocess.SW_HIDE

	logger = logging.getLogger('KingPhisher.ExternalProcess')
	logger.debug('starting external process: ' + ' '.join(process_args))
	proc_h = subprocess.Popen(
		process_args,
		stdin=subprocess.PIPE,
		stdout=subprocess.PIPE,
		stderr=subprocess.PIPE,
		preexec_fn=preexec_fn,
		close_fds=close_fds,
		cwd=cwd,
		startupinfo=startupinfo
	)
	if not wait:
		return proc_h
	return proc_h.wait() == 0 

def subprocess_Popen(command, **params):
    """
    Utility function to work around windows behavior that open windows.

    :see: call_subprocess_Popen and output_subprocess_Popen
    """
    startupinfo = None
    if os.name == 'nt':
        startupinfo = subprocess.STARTUPINFO()
        try:
            startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
        except AttributeError:
            startupinfo.dwFlags |= subprocess._subprocess.STARTF_USESHOWWINDOW

        # Anaconda for Windows does not always provide .exe files
        # in the PATH, they also have .bat files that call the corresponding
        # executable. For instance, "g++.bat" is in the PATH, not "g++.exe"
        # Unless "shell=True", "g++.bat" is not executed when trying to
        # execute "g++" without extensions.
        # (Executing "g++.bat" explicitly would also work.)
        params['shell'] = True

    # Using the dummy file descriptors below is a workaround for a
    # crash experienced in an unusual Python 2.4.4 Windows environment
    # with the default None values.
    stdin = None
    if "stdin" not in params:
        stdin = open(os.devnull)
        params['stdin'] = stdin.fileno()

    try:
        proc = subprocess.Popen(command, startupinfo=startupinfo, **params)
    finally:
        if stdin is not None:
            del stdin
    return proc 

def launchTunnelWithoutConsole(command, port):
    """Launches 'command' windowless and waits until finished"""
#    startupinfo = subprocess.STARTUPINFO()
#    startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
#    startupinfo.wShowWindow = subprocess.SW_HIDE
#    subprocess.Popen([command, 'tcp', port], startupinfo=startupinfo)
    if ostype == 'windows':
        os.popen2('START /B '+command+' tcp '+port)

    else:
        os.popen2(command+' tcp '+port + ' &') 

def standard_format(string, command):
    """
    Uses subprocess to format a given string.
    """

    startupinfo = None

    if platform == "windows":
        # Prevent cmd.exe window from popping up
        startupinfo = subprocess.STARTUPINFO()
        startupinfo.dwFlags |= (
            subprocess.STARTF_USESTDHANDLES | subprocess.STARTF_USESHOWWINDOW
        )
        startupinfo.wShowWindow = subprocess.SW_HIDE

    std = subprocess.Popen(
        command,
        env=calculate_env(),
        stdin=subprocess.PIPE,
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
        startupinfo=startupinfo
    )

    std.stdin.write(bytes(string, 'UTF-8'))
    out, err = std.communicate()
    print(err)
    return out.decode("utf-8"), None 

def check_cmd_in_syspath(command_name):
    """
    Checks if command_name can be executed without throwing FileNotFoundError.
    If the command could be executed True is returned, otherwise False.

    (Currently not used, but might be useful in the future...)
    """
    try:
        info = _sp.STARTUPINFO()
        info.dwFlags |= _sp.STARTF_USESHOWWINDOW
        info.wShowWindow = _sp.SW_HIDE

        proc = _sp.Popen([command_name, "--help"], stdout=_sp.PIPE, stderr=_sp.PIPE, stdin=_sp.PIPE, startupinfo=info)
        _, _ = proc.communicate()
        return True
    except WindowsError as excpt:
        return False 

def call_command(command, return_code=0): # type: (List,Optional[int]) -> Tuple[str, str]
        # Ensure that command window does not pop up on Windows!
        info = subprocess.STARTUPINFO()
        info.dwFlags |= subprocess.STARTF_USESHOWWINDOW
        info.wShowWindow = subprocess.SW_HIDE
        p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, startupinfo=info)
        stdout, stderr = p.communicate()
        if return_code is not None and p.returncode != return_code:
            raise subprocess.CalledProcessError(p.returncode, command)
        return stdout, stderr 

def exec_command(cmd, ok_return_value=0):
    """
    Run given command, check return value, and return
    concatenated stdout and stderr.
    :param cmd: Command to execute
    :param ok_return_value: The expected return value after successful completion
    :raises: TexTextCommandNotFound, TexTextCommandFailed
    """

    try:
        # hides the command window for cli tools that are run (in Windows)
        info = None
        if PLATFORM == WINDOWS:
            info = subprocess.STARTUPINFO()
            info.dwFlags |= subprocess.STARTF_USESHOWWINDOW
            info.wShowWindow = subprocess.SW_HIDE

        p = subprocess.Popen(cmd,
                             stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE,
                             stdin=subprocess.PIPE,
                             startupinfo=info)
        out, err = p.communicate()
    except OSError as err:
        raise TexTextCommandNotFound("Command %s failed: %s" % (' '.join(cmd), err))

    if ok_return_value is not None and p.returncode != ok_return_value:
        raise TexTextCommandFailed(message="Command %s failed (code %d)" % (' '.join(cmd), p.returncode),
                                   return_code=p.returncode,
                                   stdout=out,
                                   stderr=err)
    return out + err 

def _invoke(self, cmdline):
        if sys.platform[:3] == 'win':
            closefds = False
            startupinfo = subprocess.STARTUPINFO()
            startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
        else:
            closefds = True
            startupinfo = None

        if (os.environ.get('DISPLAY') or sys.platform[:3] == 'win' or
                                                    sys.platform == 'darwin'):
            inout = file(os.devnull, 'r+')
        else:
            # for TTY programs, we need stdin/out
            inout = None

        # if possible, put the child precess in separate process group,
        # so keyboard interrupts don't affect child precess as well as
        # Python
        setsid = getattr(os, 'setsid', None)
        if not setsid:
            setsid = getattr(os, 'setpgrp', None)

        pipe = subprocess.Popen(cmdline, stdin=inout, stdout=inout,
                                stderr=inout, close_fds=closefds,
                                preexec_fn=setsid, startupinfo=startupinfo)

        # It is assumed that this kind of tools (gnome-open, kfmclient,
        # exo-open, xdg-open and open for OSX) immediately exit after lauching
        # the specific application
        returncode = pipe.wait()
        if hasattr(self, 'fixreturncode'):
            returncode = self.fixreturncode(returncode)
        return not returncode 

def getStartupInfo():
    if hasattr(subprocess,'STARTUPINFO'): #Windows
        startupinfo = subprocess.STARTUPINFO()
        try:
            startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW #Suppress terminal window
        except:
            startupinfo.dwFlags |= 1
        return startupinfo

    return None