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.
stdin.write() Method:
<code class="python">p.stdin.write("dir\n".encode())</code>
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 callp.wait() Method waits for the process to complete.
<code class="python">p.wait()</code>
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