Pylint and Subprocess.Run returning Exit Status 28 - subprocess

Question

I'm trying to run pylint using subprocess but getting a vague message stating non-zero exit status 28. I can not find any reference to an exit status 28 for either Pylint or subprocess.
I can only assume this is a pylint/windows issue as running some other typical commands e.g. head, works just fine as does running pylint directly in the console.
Running python 3.5 on Windows 10.
Any ideas?
MWE
import subprocess
cmd = 'pylint test_script.py'
subprocComplete = subprocess.run(cmd, shell=True, check=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
print(subprocComplete.stdout.decode('utf-8'))
Output
python35 pylint_subprocess_test.py
Traceback (most recent call last):
File "pylint_subprocess_test.py", line 3, in <module>
subprocComplete = subprocess.run(cmd, shell=True, check=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
File "C:\Python35\lib\subprocess.py", line 708, in run
output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command 'pylint test_script.py' returned non-zero exit status 28

Answer 1

If the subprocess returns nonzero (which pylint often will), then subprocComplete never gets assigned to. You can catch the error, and the error object holds the output you want.
import subprocess
cmd = 'pylint test_script.py'
try:
subprocComplete = subprocess.run(cmd, shell=True, check=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
print(subprocComplete.stdout.decode('utf-8'))
except subprocess.CalledProcessError as err:
print(err.output.decode('utf-8'))