def warn_interactive()

in core/util.py [0:0]

• 6 lines of code
• 3 McCabe index (conditional complexity)

def warn_interactive(f):
    if f.isatty():
        if os.name == "nt":
            print("Press CTRL-Z and ENTER to end", file=sys.stderr)
        else:
            print("Press CTRL-D one time (or two, if you entered any input) to end", file=sys.stderr)