How to enter cmd in python

You can open CMD through Python's subprocess module: import the subprocess module; use subprocess.call() to call CMD; use subprocess.Popen() to create a subprocess object for interaction; use the subprocess object's stdin, stdout and The stderr attribute interacts with CMD; the p.wait() method is called to wait for the process to complete.

How to open CMD in Python

To open the Command Prompt (CMD) through a Python script, you can use The following steps:

1. Import the subprocess module

Import the subprocess module in the Python script, which provides subprocess management functions.

import subprocess

2. Use subprocess.call() to call CMD

Use subprocess.call() function to call CMD . This function accepts the command to be called as a parameter list.

subprocess.call("cmd")

3. Use subprocess.Popen() to create a subprocess

If you need to interact with the CMD process, you can use subprocess. The Popen() function creates a subprocess object.

p = subprocess.Popen("cmd", stdout=subprocess.PIPE, stderr=subprocess.PIPE)

This will create a subprocess object p whose standard output and standard error will be captured.

4. Interacting with CMD

To interact with the CMD process, you can use the stdin, ## of the p object The #stdout and stderr properties represent standard input, standard output, and standard error respectively.

For example, to send a command to CMD, you can use

stdin.write() Method:

p.stdin.write("dir\n".encode())

To read the output of CMD, you can use

stdout. read() Method:

output = p.stdout.read()

5. Wait for the process to complete

When the interaction with CMD is completed, you can call

p.wait() Method waits for the process to complete.

p.wait()

Use these steps to easily open and manage CMD processes from a Python script.

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