在 Tkinter GUI 中写入终端

Question

我试图在我的 Tkinter GUI 中实时显示命令行中的更改，我设法创建了 GUI 并将终端集成到其中，但我无法将按钮与终端绑定，我的代码是：

import Tkinter
from Tkinter import *
import subprocess
import os
from os import system as cmd

WINDOW_SIZE = "600x400"
top = Tkinter.Tk()
top.geometry(WINDOW_SIZE)

def helloCallBack():
   print "Below is the output from the shell script in terminal"
   subprocess.call('perl /projects/tfs/users/$USER/scripts_coverage.pl', shell=True)
def BasicCovTests():
   print "Below is the output from the shell script in terminal"
   subprocess.call('perl /projects/tfs/users/$USER/basic_coverage_tests.pl', shell=True)
def FullCovTests():
   print "Below is the output from the shell script in terminal"
   subprocess.call('perl /projects/tfs/users/$USER/basic_coverage_tests.pl', shell=True)


Scripts_coverage  = Tkinter.Button(top, text ="Scripts Coverage", command = helloCallBack)
Scripts_coverage.pack()

Basic_coverage_tests  = Tkinter.Button(top, text ="Basic Coverage Tests", command = BasicCovTests)
Basic_coverage_tests.pack()

Full_coverage_tests  = Tkinter.Button(top, text ="Full Coverage Tests", command = FullCovTests)
Full_coverage_tests.pack()

termf = Frame(top, height=100, width=500)

termf.pack(fill=BOTH, expand=YES)
wid = termf.winfo_id()

os.system('xterm -into %d -geometry 100x20 -sb &' % wid)

def send_entry_to_terminal(*args):
    """*args needed since callback may be called from no arg (button)
   or one arg (entry)
   """
    cmd("%s" % (BasicCovTests))

top.mainloop()

#

我想赢我单击按钮以查看它在终端中打印命令

Answer 1

好吧，您至少在正确的模块中。 subprocess 还包含用于查看您运行的命令输出的实用程序，以便您可以使用 perl 脚本的输出。

如果您想在完成运行后简单地获取所有子进程的输出，请使用subrocess.check_output()。它应该绰绰有余。

但是，如果子任务是一个长时间运行的程序或者您需要实时监控，您应该真正查看subprocess 模块中的Popen 类。您可以像这样创建和监控新流程：

import subprocess

p = subprocess.Popen("perl /projects/tfs/users/$USER/scripts_coverage.pl", stdout = subprocess.PIPE, stderr = subprocess.STDOUT, shell = True)   

while True:
    line = p.stdout.readline()
    print line
    if not line: break

您可以从那里将输出回显到终端或使用 Tkinter 小部件显示滚动程序输出。希望这会有所帮助。