Function fail

tools/python-3.11.9-amd64/Tools/scripts/ndiff.py:53–57

(msg)

import difflib, sys

def fail(msg):
    out = sys.stderr.write
    out(msg + "\n\n")
    out(__doc__)
    return 0

# open a file & return the file object; gripe and return 0 if it
# couldn't be opened