gogen.py 文件源码

def generate2():
    """
    Call an external Python 2 program to retrieve the AST symbols of that
    language version
    :return:
    """
    import subprocess as sp
    import tempfile, shutil, sys, traceback

    tempdir = tempfile.mkdtemp()
    tempfile = os.path.join(tempdir, "py2_ast_code.py")

    py2_proc_out = ""
    try:
        with open(tempfile, 'w') as py2code:
            py2code.write(generate_str + WRITESYMS_CODE)

        py2_proc_out = sp.check_output(["python2", tempfile]).decode()
    finally:
        try:
            shutil.rmtree(tempdir)
        except:
            print("Warning: error trying to delete the temporal directory:", file=sys.stderr)
            print(traceback.format_exc(), file=sys.stderr)
    return set(py2_proc_out.splitlines())