一尘不染

如何从一个脚本打开两个控制台

python

除了脚本自己的控制台 （不执行任何操作）之外， 我想打开两个控制台并打印变量，con1并con2在不同的控制台中，如何实现此目的。

con1 = 'This is Console1'
con2 = 'This is Console2'

我不知道如何实现这一目标，并花了几个小时尝试使用诸如subprocess但没有运气的模块来实现这一目标。顺便说一下，我在窗户上。

编辑：

请问threading模块做的工作？还是multiprocessing需要？

阅读 159

2020-12-20

共1个答案

一尘不染

如果您不想重新考虑问题并使用@Kevin回答中的GUI，则可以使用subprocessmodule同时启动两个新控制台，并在打开的窗口中显示两个给定的字符串：

#!/usr/bin/env python3
import sys
import time
from subprocess import Popen, PIPE, CREATE_NEW_CONSOLE

messages = 'This is Console1', 'This is Console2'

# open new consoles
processes = [Popen([sys.executable, "-c", """import sys
for line in sys.stdin: # poor man's `cat`
    sys.stdout.write(line)
    sys.stdout.flush()
"""],
    stdin=PIPE, bufsize=1, universal_newlines=True,
    # assume the parent script is started from a console itself e.g.,
    # this code is _not_ run as a *.pyw file
    creationflags=CREATE_NEW_CONSOLE)
             for _ in range(len(messages))]

# display messages
for proc, msg in zip(processes, messages):
    proc.stdin.write(msg + "\n")
    proc.stdin.flush()

time.sleep(10) # keep the windows open for a while

# close windows
for proc in processes:
    proc.communicate("bye\n")

这是一个不依赖的简化版本CREATE_NEW_CONSOLE：

#!/usr/bin/env python
"""Show messages in two new console windows simultaneously."""
import sys
import platform
from subprocess import Popen

messages = 'This is Console1', 'This is Console2'

# define a command that starts new terminal
if platform.system() == "Windows":
    new_window_command = "cmd.exe /c start".split()
else:  #XXX this can be made more portable
    new_window_command = "x-terminal-emulator -e".split()

# open new consoles, display messages
echo = [sys.executable, "-c",
        "import sys; print(sys.argv[1]); input('Press Enter..')"]
processes = [Popen(new_window_command + echo + [msg])  for msg in messages]

# wait for the windows to be closed
for proc in processes:
    proc.wait()

2020-12-20