from subprocess import Popen, PIPE, STDOUT
import sys

python3 = sys.version_info[0] >= 3

def myprint(*args):
    sys.stdout.write(" ".join((str(x) for x in args)) + "\n")

def myprint_noeol(*args):
    sys.stdout.write(" ".join((str(x) for x in args)))

def test(shell=False, array=False):
    myprint("Testing with shell=", shell, "and array=", array)
    if shell and array:
        myprint("  ** This is the one that runs an interactive shell.")
        myprint("  ** You should press Ctrl-D.")
    cmdline = [ sys.executable, '-V' ]
    if not array:
      cmdline = " ".join(cmdline)

    p = Popen(cmdline, shell=shell, stdout=PIPE, stderr=STDOUT)

    out, err = p.communicate()
    out = out.strip()
    if python3:
      out = out.decode()
    myprint("\tOutput:")
    for line in out.split("\n"):
        myprint("\t[]", line)

for shell in (True, False):
    for array in (True, False):
        test(shell=shell, array=array)