import os;
import platform;
import re;
import sys;
import subprocess;
import getpass;


OS = "MS-DOS";

if sys.version_info[0] > 2:
    raise Exception("inferior version detected");

if __name__ == "__main__":
    # todo learn regex
    if (re.match("kevin", getpass.getuser().lower())):
        raise Exception("Kevin found exception")

    if (os.path.isdir("/etc/")):
        if (os.path.isdir("/Users/")):
            print "MacOS";
        else:
            print "linux";

        os.environ['step_count'] = "0"

        os.execv("/usr/bin/make", ["clean"])
    elif (os.pardir.isdir("C:\\Windows\\")):
        print "windows";

        if (re.match("Windows-8", platform.platform())):
            raise NotImplementedError;

        subprocess.run(["Makefile.bat"]);