[SOLVED] [Windows] Run "dir"?

[Winfried]

Hello,

I can't figure out how to run "dir" in Windows. At this point, I get "Output:ERROR:None":

CMD = "dir /AD /OD c:\\".rstrip()
CMD = r"dir /AD /OD c:".rstrip()
CMD = r"dir /AD /OD c:"
CMD = "dir /AD /OD c:"
print(CMD)

p = subprocess.run((['cmd.exe', '/c', 'dir', CMD]), text=True, stdout=subprocess.PIPE, creationflags=subprocess.CREATE_NO_WINDOW)
if p.returncode != 0:
	output = f"ERROR:{p.stderr}"
else:
	output = f"OK: {p.stdout}"
blah = input(f"Output:{output}")

Does someone know?

Thank you.

--
Edit: As a work-around, don't bother with Windows's dir command:

import time, os

DIR=r"c:\temp"
dirs = [s for s in os.listdir(DIR) if os.path.isdir(os.path.join(DIR, s))]
for dir in dirs:
	print(dir, time.ctime(os.path.getmtime(dir)))

import time
from datetime import datetime, timezone
from pathlib import Path

paths = [subdir for subdir in Path(DIR).iterdir() if subdir.is_dir()]
paths = sorted(paths, key=os.path.getmtime)
for path in paths:
	stat_result = path.stat()
	modified = datetime.fromtimestamp(stat_result.st_mtime, tz=timezone.utc).strftime('%Y-%m-%d')
	print(f"{path} {modified}")

[deanhystad]

This works for me on Windows 11.

import subprocess

process = subprocess.run(
    "dir c:\\", shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, creationflags=subprocess.CREATE_NO_WINDOW
)
if process.returncode:
    print(process.stderr.decode("utf-8"))
else:
    print(process.stdout.decode("utf-8"))

It also worked when the command is split up into arguments.

process = subprocess.run(
    ["dir", "c:\\"],
    shell=True,
    stdout=subprocess.PIPE,
    stderr=subprocess.PIPE,
    creationflags=subprocess.CREATE_NO_WINDOW,
)

The magic sauce is probably setting shell=True.

Using pathlib is a better solution.

[Winfried]

Thanks much.

I had to use a different page code to get the characters right:

else:
	#UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 219: invalid start byte
	#print(process.stdout.decode("utf-8"))
	print(process.stdout.decode("cp852"))

[Gribouillis]

I had to use a different page code to get the characters right:

You could use the keyword argument encoding="cp852" in the call to subprocess.run(). Then process.stdout and process.stderr would already be unicode strings of type str.

I don't know how to obtain the cp852 from your Windows os.