def get_config(schema=None, warn_about_no_config=True):
    if schema is None:
        from setup import get_config_schema
        schema = get_config_schema()

    if (not schema.have_config() and not schema.have_global_config()
            and warn_about_no_config):
        print "*************************************************************"
        print "*** I have detected that you have not run configure.py."
        print "*************************************************************"
        print "*** Additionally, no global config files were found."
        print "*** I will go ahead with the default configuration."
        print "*** In all likelihood, this will not work out."
        print "*** "
        print "*** See README_SETUP.txt for more information."
        print "*** "
        print "*** If the build does fail, just re-run configure.py with the"
        print "*** correct arguments, and then retry. Good luck!"
        print "*************************************************************"
        print "*** HIT Ctrl-C NOW IF THIS IS NOT WHAT YOU WANT"
        print "*************************************************************"

        delay = 10

        from time import sleep
        import sys
        while delay:
            sys.stdout.write("Continuing in %d seconds...   \r" % delay)
            sys.stdout.flush()
            delay -= 1
            sleep(1)

    return schema.read_config()

def get_config(schema=None, warn_about_no_config=True):
    if schema is None:
        from setup import get_config_schema
        schema = get_config_schema()

    if (not schema.have_config() and not schema.have_global_config()
            and warn_about_no_config):
        print("*************************************************************")
        print("*** I have detected that you have not run configure.py.")
        print("*************************************************************")
        print("*** Additionally, no global config files were found.")
        print("*** I will go ahead with the default configuration.")
        print("*** In all likelihood, this will not work out.")
        print("*** ")
        print("*** See README_SETUP.txt for more information.")
        print("*** ")
        print("*** If the build does fail, just re-run configure.py with the")
        print("*** correct arguments, and then retry. Good luck!")
        print("*************************************************************")
        print("*** HIT Ctrl-C NOW IF THIS IS NOT WHAT YOU WANT")
        print("*************************************************************")

        count_down_delay(delay=10)

    config = expand_options(schema.read_config())
    schema.update_config_from_and_modify_command_line(config, sys.argv)
    return config

def configure_frontend():
    from optparse import OptionParser

    from setup import get_config_schema

    schema = get_config_schema()
    if schema.have_config():
        print("************************************************************")
        print("*** I have detected that you have already run configure.")
        print("*** I'm taking the configured values as defaults for this")
        print("*** configure run. If you don't want this, delete the file")
        print("*** %s." % schema.get_conf_file())
        print("************************************************************")

    import sys

    description = "generate a configuration file for this software package"
    parser = OptionParser(description=description)
    parser.add_option(
        "--python-exe",
        dest="python_exe",
        default=sys.executable,
        help="Which Python interpreter to use",
        metavar="PATH",
    )

    parser.add_option("--prefix", default=None, help="Ignored")
    parser.add_option("--enable-shared", help="Ignored", action="store_false")
    parser.add_option("--disable-static", help="Ignored", action="store_false")
    parser.add_option("--update-user", help="Update user config file (%s)" % schema.user_conf_file, action="store_true")
    parser.add_option(
        "--update-global", help="Update global config file (%s)" % schema.global_conf_file, action="store_true"
    )

    schema.add_to_configparser(parser, schema.read_config())

    options, args = parser.parse_args()

    config = schema.get_from_configparser(options)
    schema.write_config(config)

    if options.update_user:
        schema.update_user_config(config)

    if options.update_global:
        schema.update_global_config(config)

    import os

    if os.access("Makefile.in", os.F_OK):
        substs = schema.make_substitutions(config)
        substs["PYTHON_EXE"] = options.python_exe

        substitute(substs, "Makefile")