To launch cmd line terminal, keep it alive and keep sending commands to it from a Kivy GUI
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Version: Python 3.7 | Platform: Windows 7
My goal: To launch cmd line terminal, keep it alive and keep sending commands to it from a Kivy GUI
My Issue: Subprocess terminates after command exectution
Description: I have a GUI with two buttons. Each button should send some commands to the teminal. After executing "button1" callback function, the spawned child process terminates. And then, when I try to run the "button2" callback, I get an error "ValueError: I/O operation on closed file".
Here is my code:
def button1_callback(self):
self.child = popen_spawn.PopenSpawn("cmd.exe")
self.child.sendline("dir")
self.child.sendeof()
self.txt += 'nn' + self.child.read().decode()
self.update()
def button2_callback(self):
self.child.sendline("cd E:/temp")
self.child.sendeof()
self.txt += 'nn' + self.child.read().decode()
self.update()
python python-3.x subprocess pexpect
asked Nov 11 at 13:43
Akisame Koetsuji
11
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up vote
0
down vote
favorite
Version: Python 3.7 | Platform: Windows 7
My goal: To launch cmd line terminal, keep it alive and keep sending commands to it from a Kivy GUI
My Issue: Subprocess terminates after command exectution
Description: I have a GUI with two buttons. Each button should send some commands to the teminal. After executing "button1" callback function, the spawned child process terminates. And then, when I try to run the "button2" callback, I get an error "ValueError: I/O operation on closed file".
Here is my code:
def button1_callback(self):
self.child = popen_spawn.PopenSpawn("cmd.exe")
self.child.sendline("dir")
self.child.sendeof()
self.txt += 'nn' + self.child.read().decode()
self.update()
def button2_callback(self):
self.child.sendline("cd E:/temp")
self.child.sendeof()
self.txt += 'nn' + self.child.read().decode()
self.update()
python python-3.x subprocess pexpect
asked Nov 11 at 13:43
Akisame Koetsuji
11
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
Version: Python 3.7 | Platform: Windows 7
My goal: To launch cmd line terminal, keep it alive and keep sending commands to it from a Kivy GUI
My Issue: Subprocess terminates after command exectution
Description: I have a GUI with two buttons. Each button should send some commands to the teminal. After executing "button1" callback function, the spawned child process terminates. And then, when I try to run the "button2" callback, I get an error "ValueError: I/O operation on closed file".
Here is my code:
def button1_callback(self):
self.child = popen_spawn.PopenSpawn("cmd.exe")
self.child.sendline("dir")
self.child.sendeof()
self.txt += 'nn' + self.child.read().decode()
self.update()
def button2_callback(self):
self.child.sendline("cd E:/temp")
self.child.sendeof()
self.txt += 'nn' + self.child.read().decode()
self.update()
python python-3.x subprocess pexpect
asked Nov 11 at 13:43
Akisame Koetsuji
11
Version: Python 3.7 | Platform: Windows 7
My goal: To launch cmd line terminal, keep it alive and keep sending commands to it from a Kivy GUI
My Issue: Subprocess terminates after command exectution
Description: I have a GUI with two buttons. Each button should send some commands to the teminal. After executing "button1" callback function, the spawned child process terminates. And then, when I try to run the "button2" callback, I get an error "ValueError: I/O operation on closed file".
Here is my code:
def button1_callback(self):
self.child = popen_spawn.PopenSpawn("cmd.exe")
self.child.sendline("dir")
self.child.sendeof()
self.txt += 'nn' + self.child.read().decode()
self.update()
def button2_callback(self):
self.child.sendline("cd E:/temp")
self.child.sendeof()
self.txt += 'nn' + self.child.read().decode()
self.update()
python python-3.x subprocess pexpect
python python-3.x subprocess pexpect
asked Nov 11 at 13:43
Akisame Koetsuji
11
asked Nov 11 at 13:43
Akisame Koetsuji
11
asked Nov 11 at 13:43
Akisame Koetsuji
11
asked Nov 11 at 13:43
Akisame Koetsuji
11
asked Nov 11 at 13:43
Akisame Koetsuji
11
11
add a comment |
add a comment |
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