invoking pylint programmatically

Question

I\'d like to invoke the pylint checker, limited to the Error signalling part, as part of my unit testing. so I checked the pylint executable script, got to the pylint

Answer 1

Instead of creating a WritableObject class we can use StringIO. StringIO contains write method.

import sys
try:
    from io import StringIO
except:
    from StringIO import StringIO

stdout = sys.stdout
sys.stdout = StringIO()

ARGS = ["-r","n", "--rcfile=rcpylint"]
r = lint.Run(['../test.py']+ARGS, exit=False)

test = sys.stdout.getvalue()
sys.stdout.close()
sys.stdout = stdout

print (test.split('\n'))

Source:

• @cdarke 's answer

• @mad7777's answer