Question Authors' Forum

import subprocess, sys

# Write the student code to a file prog.c
student_answer = """{{ STUDENT_ANSWER | e('py') }}"""
with open("prog.yam", "w") as src:
    print(student_answer, file=src)

# Run the code. Since this is a per-test template,
# stdin is already set up for the stdin text specified in the test case,
# so we can run the compiled program directly.

try:
    output = subprocess.check_output(["docass", "prog.yam"], universal_newlines=True)
    print(output)
except subprocess.CalledProcessError as e:
    if e.returncode > 0:
        # Ignore non-zero positive return codes
        if e.output:
            print(e.output)
    else:
        # But negative return codes are signals - abort
        if e.output:
            print(e.output, file=sys.stderr)
        if e.returncode < 0:
            print("Task failed with signal", -e.returncode, file=sys.stderr)
        print("** Further testing aborted **", file=sys.stderr)

You'll also want to change the question type to (say) docassemble rather than c_via_python and the question name to PROTOTYPE_docassemble. And you'll have to set the Ace language to something that does reasonable syntax highlighting of your combination python/yaml code. Perhaps just leave it empty to get python syntax colouring? Or maybe 'yaml' works to give yaml highlighting? Otherwise enter some rubbish non-existent language and Ace will turn off syntax highlighting altogether.