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.

<code class="python">import subprocess</code>

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.

<code class="python">subprocess.call("cmd")</code>

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.

<code class="python">p = subprocess.Popen("cmd", stdout=subprocess.PIPE, stderr=subprocess.PIPE)</code>

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:

<code class="python">p.stdin.write("dir\n".encode())</code>

To read the output of CMD, you can use

stdout. read() Method:

<code class="python">output = p.stdout.read()</code>

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.

<code class="python">p.wait()</code>

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

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