Python子流程,具有实时输入和多个控制台

Question

主要问题

简而言之:我想为我的程序安装两个控制台.一个用于活动用户输入.另一个用于纯日志输出. (工作代码包括已接受的答案在下面的问题文本中,在"编辑-3"部分下面.在"编辑-1"部分和"编辑-2"部分是功能解决方法.)

为此,我有一个主命令行Python脚本,它应该只为日志输出打开一个额外的控制台.为此,我打算将日志输出重定向到第二个控制台的stdin,该日志输出将打印在主脚本的控制台上,我将其作为子进程启动.(我使用subprocess,因为我没有找到任何其他方法来打开第二个控制台.)

问题是,似乎我能够发送到第二个控制台的stdin - 但是,在第二个控制台上没有任何内容被打印出来.

以下是我用于实验的代码(在Windows 10下的PyDev上使用Python 3.4).该函数writing(input, pipe, process)包含将生成的字符串复制到pipevia子进程打开的控制台的as 传递的stdin的部分.函数writing(...)通过类运行writetest(Thread).(我留下了一些代码,我注释掉了.)

import os
import sys
import io
import time
import threading
from cmd import Cmd
from queue import Queue
from subprocess import Popen, PIPE, CREATE_NEW_CONSOLE


REPETITIONS = 3


# Position of "The class" (Edit-2)


# Position of "The class" (Edit-1)


class generatetest(threading.Thread):

    def __init__(self, queue):
        self.output = queue
        threading.Thread.__init__(self)

    def run(self):
        print('run generatetest')
        generating(REPETITIONS, self.output)
        print('generatetest done')

    def getout(self):
        return self.output


class writetest(threading.Thread):

    def __init__(self, input=None, pipe=None, process=None):
        if (input == None):        # just in case
            self.input = Queue()
        else:
            self.input = input

        if (pipe == None):        # just in case
            self.pipe = PIPE
        else:
            self.pipe = pipe

        if (process == None):        # just in case
            self.process = subprocess.Popen('C:\Windows\System32\cmd.exe', universal_newlines=True, creationflags=CREATE_NEW_CONSOLE)
        else:
            self.process = proc

        threading.Thread.__init__(self)

    def run(self):
        print('run writetest')
        writing(self.input, self.pipe, self.process)
        print('writetest done')


# Position of "The function" (Edit-2)


# Position of "The function" (Edit-1)


def generating(maxint, outline):
    print('def generating')
    for i in range(maxint):
        time.sleep(1)
        outline.put_nowait(i)


def writing(input, pipe, process):
    print('def writing')
    while(True):
        try:
            print('try')
            string = str(input.get(True, REPETITIONS)) + "\n"
            pipe = io.StringIO(string)
            pipe.flush()
            time.sleep(1)
            # print(pipe.readline())
        except:
            print('except')
            break
        finally:
            print('finally')
            pass


data_queue = Queue()
data_pipe = sys.stdin
# printer = sys.stdout
# data_pipe = os.pipe()[1]


# The code of 'C:\\Users\\Public\\Documents\\test\\test-cmd.py'
# can be found in the question's text further below under "More code"


exe = 'C:\Python34\python.exe'
# exe = 'C:\Windows\System32\cmd.exe'
arg = 'C:\\Users\\Public\\Documents\\test\\test-cmd.py'
arguments = [exe, arg]
# proc = Popen(arguments, universal_newlines=True, creationflags=CREATE_NEW_CONSOLE)
proc = Popen(arguments, stdin=data_pipe, stdout=PIPE, stderr=PIPE,
             universal_newlines=True, creationflags=CREATE_NEW_CONSOLE)


# Position of "The call" (Edit-2 & Edit-1) - file init (proxyfile)


# Position of "The call" (Edit-2) - thread = sockettest()
# Position of "The call" (Edit-1) - thread0 = logtest()
thread1 = generatetest(data_queue)
thread2 = writetest(data_queue, data_pipe, proc)
# time.sleep(5)


# Position of "The call" (Edit-2) - thread.start()
# Position of "The call" (Edit-1) - thread0.start()
thread1.start()
thread2.start()


# Position of "The call" (Edit-2) - thread.join()
# Position of "The call" (Edit-1) - thread.join()
thread1.join(REPETITIONS * REPETITIONS)
thread2.join(REPETITIONS * REPETITIONS)

# data_queue.join()
# receiver = proc.communicate(stdin, 5)
# print('OUT:' + receiver[0])
# print('ERR:' + receiver[1])

print("1st part finished")

---

一种稍微不同的方法

以下附加代码片段适用于从子进程中提取stdout.但是,先前发送的stdin仍然不在第二个控制台上打印.此外,第二个控制台立即关闭.

proc2 = Popen(['C:\Python34\python.exe', '-i'],
              stdin=PIPE,
              stdout=PIPE,
              stderr=PIPE,
              creationflags=CREATE_NEW_CONSOLE)
proc2.stdin.write(b'2+2\n')
proc2.stdin.flush()
print(proc2.stdout.readline())
proc2.stdin.write(b'len("foobar")\n')
proc2.stdin.flush()
print(proc2.stdout.readline())
time.sleep(1)
proc2.stdin.close()
proc2.terminate()
proc2.wait(timeout=0.2)

print("Exiting Main Thread")

---

更多信息

一旦我使用其中一个参数stdin=data_pipe, stdout=PIPE, stderr=PIPE启动子进程,生成的第二个控制台就不会激活并且不接受键盘输入(这不是所希望的,尽管这里可能是有用的信息).

子communicate()进程方法不能用于此,因为它等待进程结束.

---

更多代码

最后是文件的代码,用于第二个控制台.

C:\用户\公用\文档\测试\ test-cmd.py

from cmd import Cmd
from time import sleep
from datetime import datetime

INTRO = 'command line'
PROMPT = '> '


class CommandLine(Cmd):
    """Custom console"""

    def __init__(self, intro=INTRO, prompt=PROMPT):
        Cmd.__init__(self)
        self.intro = intro
        self.prompt = prompt
        self.doc_header = intro
        self.running = False

    def do_dummy(self, args):
        """Runs a dummy method."""
        print("Do the dummy.")
        self.running = True
        while(self.running == True):
            print(datetime.now())
            sleep(5)

    def do_stop(self, args):
        """Stops the dummy method."""
        print("Stop the dummy, if you can.")
        self.running = False

    def do_exit(self, args):
        """Exits this console."""
        print("Do console exit.")
        exit()

if __name__ == '__main__':
    cl = CommandLine()
    cl.prompt = PROMPT
    cl.cmdloop(INTRO)

---

思考

到目前为止,我甚至不确定Windows命令行界面是否能够接受除键盘之外的其他输入(而不是所需的标准输入管道或类似输入).虽然,它有某种被动模式,我期待它.

为什么这不起作用？

---

编辑-1:通过文件解决方法(概念证明)

使用文件作为变通方法,以显示它的新内容,正如在python中使用多个控制台的答案中所建议的那样,一般都在工作.但是,由于日志文件将增长到许多GB,因此在这种情况下它不是一个实用的解决方案.它至少需要文件分割和正确处理它.

班级:

class logtest(threading.Thread):

    def __init__(self, file):
        self.file = file
        threading.Thread.__init__(self)

    def run(self):
        print('run logtest')
        logging(self.file)
        print('logtest done')

功能:

def logging(file):
    pexe = 'C:\Python34\python.exe '
    script = 'C:\\Users\\Public\\Documents\\test\\test-004.py'
    filek = '--file'
    filev = file

    file = open(file, 'a')
    file.close()
    time.sleep(1)

    print('LOG START (outer): ' + script + ' ' + filek + ' ' + filev)
    proc = Popen([pexe, script, filek, filev], universal_newlines=True, creationflags=CREATE_NEW_CONSOLE)
    print('LOG FINISH (outer): ' + script + ' ' + filek + ' ' + filev)

    time.sleep(2)

电话:

# The file tempdata is filled with several strings of "0\n1\n2\n"
# Looking like this:
# 0
# 1
# 2
# 0
# 1
# 2

proxyfile = 'C:\\Users\\Public\\Documents\\test\\tempdata'
f = open(proxyfile, 'a')
f.close()
time.sleep(1)

thread0 = logtest(proxyfile)
thread0.start()
thread0.join(REPETITIONS * REPETITIONS)

尾部脚本("test-004.py"):

As Windows doesn't offer the tail command, I used the following script instead (base on the answer for How to implement a pythonic equivalent of tail -F?), which worked for this. The additional, yet kind of unnecessary class CommandLine(Cmd) was initially an attempt to keep the second console open (because the script file argument was missing). Though, it also proved itself as useful for keeping the console fluently printing the new log file content. Otherwise the output wasn't deterministic/predictable.

import time
import sys
import os
import threading
from cmd import Cmd
from argparse import ArgumentParser


def main(args):
    parser = ArgumentParser(description="Parse arguments.")
    parser.add_argument("-f", "--file", type=str, default='', required=False)
    arguments = parser.parse_args(args)

    if not arguments.file:
        print('LOG PRE-START (inner): file argument not found. Creating new default entry.')
        arguments.file = 'C:\\Users\\Public\\Documents\\test\\tempdata'

    print('LOG START (inner): ' + os.path.abspath(os.path.dirname(__file__)) + ' ' + arguments.file)

    f = open(arguments.file, 'a')
    f.close()
    time.sleep(1)

    words = ['word']
    console = CommandLine(arguments.file, words)
    console.prompt = ''

    thread = threading.Thread(target=console.cmdloop, args=('', ))
    thread.start()
    print("\n")

    for hit_word, hit_sentence in console.watch():
        print("Found %r in line: %r" % (hit_word, hit_sentence))

    print('LOG FINISH (inner): ' + os.path.abspath(os.path.dirname(__file__)) + ' ' + arguments.file)


class CommandLine(Cmd):
    """Custom console"""

    def __init__(self, fn, words):
        Cmd.__init__(self)
        self.fn = fn
        self.words = words

    def watch(self):
        fp = open(self.fn, 'r')
        while True:
            time.sleep(0.05)
            new = fp.readline()
            print(new)
            # Once all lines are read this just returns ''
            # until the file changes and a new line appears

            if new:
                for word in self.words:
                    if word in new:
                        yield (word, new)

            else:
                time.sleep(0.5)


if __name__ == '__main__':
    print('LOG START (inner - as main).')
    main(sys.argv[1:])

---

Edit-1: More thoughts

Three workarounds, which I didn't try yet and might work are sockets (also suggested in this answer Working multiple consoles in python), getting a process object via the process ID for more control, and using the ctypes library for directly accessing the Windows console API, allowing to set the screen buffer, as the console can have multiple buffers, but only one active buffer (stated in the remarks of the documentation for the CreateConsoleScreenBuffer function).

However, using sockets might be the easiest one. And at least the size of the log doesn't matter this way. Though, connection problems might be a problem here.

---

Edit-2: Workaround via sockets (proof of concept)

Using sockets as workaround in order display new log enties, as it also was suggested in the answer of Working multiple consoles in python, is working in general, too. Though, this seems to be too much effort for something, which should be simply sent to the process of the receiving console.

The class:

class sockettest(threading.Thread):

    def __init__(self, host, port, file):
        self.host = host
        self.port = port
        self.file = file
        threading.Thread.__init__(self)

    def run(self):
        print('run sockettest')
        socketing(self.host, self.port, self.file)
        print('sockettest done')

The function:

def socketing(host, port, file):
    pexe = 'C:\Python34\python.exe '
    script = 'C:\\Users\\Public\\Documents\\test\test-005.py'
    hostk = '--address'
    hostv = str(host)
    portk = '--port'
    portv = str(port)
    filek = '--file'
    filev = file

    file = open(file, 'a')
    file.close()
    time.sleep(1)

    print('HOST START (outer): ' + pexe + script + ' ' + hostk + ' ' + hostv + ' ' + portk + ' ' + portv + ' ' + filek + ' ' + filev)
    proc = Popen([pexe, script, hostk, hostv, portk, portv, filek, filev], universal_newlines=True, creationflags=CREATE_NEW_CONSOLE)

    print('HOST FINISH (outer): ' + pexe + script + ' ' + hostk + ' ' + hostv + ' ' + portk + ' ' + portv + ' ' + filek + ' ' + filev)

    time.sleep(2)

The call:

# The file tempdata is filled with several strings of "0\n1\n2\n"
# Looking like this:
# 0
# 1
# 2
# 0
# 1
# 2

proxyfile = 'C:\\Users\\Public\\Documents\\test\\tempdata'
f = open(proxyfile, 'a')
f.close()
time.sleep(1)

thread = sockettest('127.0.0.1', 8888, proxyfile)
thread.start()
thread.join(REPETITIONS * REPETITIONS)

The socket script ("test-005.py"):

The following script is based on Python: Socket programming server-client application using threads. Here I just keept the class CommandLine(Cmd) as log entry generator. At this point it should't be a problem, to put client into the main script, which calls the second console and then feed the queue with real log enties instead of (new) file lines. (The server is the printer.)

import socket
import sys
import threading
import time
from cmd import Cmd
from argparse import ArgumentParser
from queue import Queue

BUFFER_SIZE = 5120

class CommandLine(Cmd):
    """Custom console"""

    def __init__(self, fn, words, queue):
        Cmd.__init__(self)
        self.fn = fn
        self.words = words
        self.queue = queue

    def watch(self):
        fp = open(self.fn, 'r')
        while True:
            time.sleep(0.05)
            new = fp.readline()

            # Once all lines are read this just returns ''
            # until the file changes and a new line appears
            self.queue.put_nowait(new)


def main(args):
    parser = ArgumentParser(description="Parse arguments.")
    parser.add_argument("-a", "--address", type=str, default='127.0.0.1', required=False)
    parser.add_argument("-p", "--port", type=str, default='8888', required=False)
    parser.add_argument("-f", "--file", type=str, default='', required=False)
    arguments = parser.parse_args(args)

    if not arguments.address:
        print('HOST PRE-START (inner): host argument not found. Creating new default entry.')
        arguments.host = '127.0.0.1'
    if not arguments.port:
        print('HOST PRE-START (inner): port argument not found. Creating new default entry.')
        arguments.port = '8888'
    if not arguments.file:
        print('HOST PRE-START (inner): file argument not found. Creating new default entry.')
        arguments.file = 'C:\\Users\\Public\\Documents\\test\\tempdata'

    file_queue = Queue()

    print('HOST START (inner): ' + ' ' + arguments.address + ':' + arguments.port + ' --file ' + arguments.file)

    # Start server
    thread = threading.Thread(target=start_server, args=(arguments.address, arguments.port, ))
    thread.start()
    time.sleep(1)

    # Start client
    thread = threading.Thread(target=start_client, args=(arguments.address, arguments.port, file_queue, ))
    thread.start()

    # Start file reader
    f = open(arguments.file, 'a')
    f.close()
    time.sleep(1)

    words = ['word']
    console = CommandLine(arguments.file, words, file_queue)
    console.prompt = ''

    thread = threading.Thread(target=console.cmdloop, args=('', ))
    thread.start()
    print("\n")

    for hit_word, hit_sentence in console.watch():
        print("Found %r in line: %r" % (hit_word, hit_sentence))

    print('HOST FINISH (inner): ' + ' ' + arguments.address + ':' + arguments.port)


def start_client(host, port, queue):
    host = host
    port = int(port)         # arbitrary non-privileged port
    queue = queue

    soc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    try:
        soc.connect((host, port))
    except:
        print("Client connection error" + str(sys.exc_info()))
        sys.exit()

    print("Enter 'quit' to exit")
    message = ""

    while message != 'quit':
        time.sleep(0.05)
        if(message != ""):
            soc.sendall(message.encode("utf8"))
            if soc.recv(BUFFER_SIZE).decode("utf8") == "-":
                pass        # null operation

        string = ""
        if (not queue.empty()):
            string = str(queue.get_nowait()) + "\n"

        if(string == None or string == ""):
            message = ""
        else:
            message = string

    soc.send(b'--quit--')


def start_server(host, port):
    host = host
    port = int(port)         # arbitrary non-privileged port

    soc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    # SO_REUSEADDR flag tells the kernel to reuse a local socket in TIME_WAIT state, without waiting for its natural timeout to expire
    soc.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    print("Socket created")

    try:
        soc.bind((host, port))
    except:
        print("Bind failed. Error : " + str(sys.exc_info()))
        sys.exit()

    soc.listen(5)       # queue up to 5 requests
    print("Socket now listening")

    # infinite loop- do not reset for every requests
    while True:
        connection, address = soc.accept()
        ip, port = str(address[0]), str(address[1])
        print("Connected with " + ip + ":" + port)

        try:
            threading.Thread(target=client_thread, args=(connection, ip, port)).start()
        except:
            print("Thread did not start.")
            traceback.print_exc()

    soc.close()


def client_thread(connection, ip, port, max_buffer_size=BUFFER_SIZE):
    is_active = True

    while is_active:
        client_input = receive_input(connection, max_buffer_size)

        if "--QUIT--" in client_input:
            print("Client is requesting to quit")
            connection.close()
            print("Connection " + ip + ":" + port + " closed")
            is_active = False
        elif not client_input == "":
            print("{}".format(client_input))
            connection.sendall("-".encode("utf8"))
        else:
            connection.sendall("-".encode("utf8"))


def receive_input(connection, max_buffer_size):
    client_input = connection.recv(max_buffer_size)
    client_input_size = sys.getsizeof(client_input)

    if client_input_size > max_buffer_size:
        print("The input size is greater than expected {}".format(client_input_size))

    decoded_input = client_input.decode("utf8").rstrip()  # decode and strip end of line
    result = process_input(decoded_input)

    return result


def process_input(input_str):
    return str(input_str).upper()


if __name__ == '__main__':
    print('HOST START (inner - as main).')
    main(sys.argv[1:])

---

Edit-2: Furthermore thoughts

Having direct control of the subprocess' console input pipe/buffer would be the preferable solution to this problem. For this is the bounty of 500 Reputation.

Unfortunately I'm running out of time. Therefore I might use one of those workarounds for now and replace them with the proper solution later. Or maybe I have to use the nuclear option, just one console, where the ongoing log output is paused during any user keyboard input, and printed afterwards. Of course this might lead to buffer problems, when the user decides to type something just half the way.

---

Edit-3: Code including the accepted answer (one file)

With the answer from James Kent I get the desired behavior, when I start a script with the code via the Windows command line (cmd) or PowerShell. However, when I start this same script via Eclipse/PyDev with "Python run", then the output is always printed on the main Eclipse/PyDev console, while the second console of the subprocess remains empty and stays inactive. Though, I guess this is another system/environment speciality and a different issue.

from sys import argv, stdin, stdout
from threading import Thread
from cmd import Cmd
from time import sleep
from datetime import datetime
from subprocess import Popen, PIPE, CREATE_NEW_CONSOLE

INTRO = 'command line'
PROMPT = '> '


class CommandLine(Cmd):
    """Custom console"""

    def __init__(self, subprocess, intro=INTRO, prompt=PROMPT):
        Cmd.__init__(self)
        self.subprocess = subprocess
        self.intro = intro
        self.prompt = prompt
        self.doc_header = intro
        self.running = False

    def do_date(self, args):
        """Prints the current date and time."""
        print(datetime.now())
        sleep(1)

    def do_exit(self, args):
        """Exits this command line application."""
        print("Exit by user command.")
        if self.subprocess is not None:
            try:
                self.subprocess.terminate()
            except:
                self.subprocess.kill()
        exit()


class Console():

    def __init__(self):
        if '-r' not in argv:
            self.p = Popen(
                ['python.exe', __file__, '-r'],
                stdin=PIPE,
                creationflags=CREATE_NEW_CONSOLE
            )
        else:
            while True:
                data = stdin.read(1)
                if not data:
                    #                     break
                    sleep(1)
                    continue
                stdout.write(data)

    def write(self, data):
        self.p.stdin.write(data.encode('utf8'))
        self.p.stdin.flush()

    def getSubprocess(self):
        if self.p:
            return self.p
        else:
            return None


class Feeder (Thread):

    def __init__(self, console):
        self.console = console
        Thread.__init__(self)

    def run(self):
        feeding(self.console)


def feeding(console):
    for i in range(0, 100):
        console.write('test %i\n' % i)
        sleep(1)


if __name__ == '__main__':
    p = Console()
    if '-r' not in argv:
        thread = Feeder(p)
        thread.setDaemon(True)
        thread.start()

        cl = CommandLine(subprocess=p.getSubprocess())
        cl.use_rawinput = False
        cl.prompt = PROMPT
        cl.cmdloop('\nCommand line is waiting for user input (e.g. help).')

---

Edit-3: Honorable mentions

In the questions's text above I have mentioned using the ctypes library for directly accessing the Windows console API as another workround (under "Edit-1: More thoughts"). Or using just one console in a way, that the input prompt always stays at the bottom as nuclear option to this entire problem. (under "Edit-2: Furthermore thoughts")

For using the ctypes library I would have oriented myself on the following answer to Change console font in Windows. And for using just one console I would have tried the following answer to Keep console input line below output. I think both of these answers may offer potential merrit regarding this problem and maybe they are helpful to others how come accross this post. Also, I if i find the time, I will try if they work somehow.

Answer 1

您遇到的问题是Windows上控制台子系统的体系结构,您通常看到的控制台窗口不是由cmd.exe托管,而是由conhost.exe托管,conhost窗口的子进程只能连接到单个conhost实例意味着每个进程限制为一个窗口.

然后,这导致为您希望拥有的每个控制台窗口创建一个额外的进程,然后为了查看在该窗口中显示任何内容,您需要查看stdin和stdout的正常处理方式,因为它们是从写入和读取的通过conhost实例,除非你将stdin转换为管道(因此你可以写入进程)它不再来自conhost而是来自你的父进程,因此conhost没有它的可见性.这意味着写入stdin的任何内容只能由子进程读取,因此不会被conhost显示.

据我所知,没有办法像这样分享管道.

作为副作用,如果将stdin作为管道,则发送到新控制台窗口的所有键盘输入都无处可去,因为stdin未连接到该窗口.

对于仅输出函数,这意味着您可以生成一个新进程,该进程通过管道与stdin进行通信,并将所有内容回显到stdout.

继承人尝试:

#!python3

import sys, subprocess, time

class Console():
    def __init__(self):
        if '-r' not in sys.argv:
            self.p = subprocess.Popen(
                ['python.exe', __file__, '-r'],
                stdin=subprocess.PIPE,
                creationflags=subprocess.CREATE_NEW_CONSOLE
                )
        else:
            while True:
                data = sys.stdin.read(1)
                if not data:
                    break
                sys.stdout.write(data)

    def write(self, data):
        self.p.stdin.write(data.encode('utf8'))
        self.p.stdin.flush()

if (__name__ == '__main__'):
    p = Console()
    if '-r' not in sys.argv:
        for i in range(0, 100):
            p.write('test %i\n' % i)
            time.sleep(1)

所以在两个进程之间有一个很好的简单管道,如果它是子进程,则将输入回显给输出,我使用-r来表示实例是否是一个进程,但还有其他方法取决于你如何实现它.

有几点需要注意:

• 写入stdin后需要刷新,因为python通常使用缓冲.
• 这种方法编写的方式是针对自己的模块,因此使用 __file__
• 由于使用__file__此方法,如果使用cx_Freeze或类似方法冻结,可能需要修改.

编辑1

对于可以使用cx_Freeze冻结的版本:

Console.py

import sys, subprocess

class Console():
    def __init__(self, ischild=True):
        if not ischild:
            if hasattr(sys, 'frozen'):
                args = ['Console.exe']
            else:
                args = [sys.executable, __file__]
            self.p = subprocess.Popen(
                args,
                stdin=subprocess.PIPE,
                creationflags=subprocess.CREATE_NEW_CONSOLE
                )
        else:
            while True:
                data = sys.stdin.read(1)
                if not data:
                    break
                sys.stdout.write(data)

    def write(self, data):
        self.p.stdin.write(data.encode('utf8'))
        self.p.stdin.flush()

if (__name__ == '__main__'):
    p = Console()

test.py

from Console import Console
import sys, time

if (__name__ == '__main__'):
    p = Console(False)
    for i in range(0, 100):
        p.write('test %i\n' % i)
        time.sleep(1)

setup.py

from cx_Freeze import setup, Executable

setup(
    name = 'Console-test',
    executables = [
        Executable(
            'Console.py',
            base=None,
            ),
        Executable(
            'test.py',
            base=None,
            )
        ]
)

编辑2

应该在像IDLE这样的开发工具下运行的新版本

Console.py

#!python3

import ctypes, sys, subprocess

Kernel32 = ctypes.windll.Kernel32

class Console():
    def __init__(self, ischild=True):
        if ischild:
            # try allocate new console
            result = Kernel32.AllocConsole()
            if result > 0:
                # if we succeed open handle to the console output
                sys.stdout = open('CONOUT$', mode='w')
        else:
            # if frozen we assume its names Console.exe
            # note that when frozen 'Win32GUI' must be used as a base
            if hasattr(sys, 'frozen'):
                args = ['Console.exe']
            else:
                # otherwise we use the console free version of python
                args = ['pythonw.exe', __file__]
            self.p = subprocess.Popen(
                args,
                stdin=subprocess.PIPE
                )
            return
        while True:
            data = sys.stdin.read(1)
            if not data:
                break
            sys.stdout.write(data)

    def write(self, data):
        self.p.stdin.write(data.encode('utf8'))
        self.p.stdin.flush()

if (__name__ == '__main__'):
    p = Console()

test.py

from Console import Console
import sys, time

if (__name__ == '__main__'):
    p = Console(False)
    for i in range(0, 100):
        p.write('test %i\n' % i)
        time.sleep(1)

setup.py

from cx_Freeze import setup, Executable

setup(
    name = 'Console-test',
    executables = [
        Executable(
            'Console.py',
            base='Win32GUI',
            ),
        Executable(
            'test.py',
            base=None,
            )
        ]
)

这可以变得更加健壮,即在创建新控制台之前始终检查现有控制台并将其分离,以及可能更好的错误处理.