def install_mod(mod_name, address, mod_directory, csv_list, the_mod_version=None, alpha_build="12d",
                log1file="installed_mods.csv"):
    # Change the current dir to ensure working and setting the version of the mod
    os.chdir(dname)
    the_mod_version = fh.extractVersionNumber("mods.csv", mod_name)

    # Check if the mod is already installed

    if (fh.isNameInFile(log1file, mod_name) and
            (fh.extractVersionNumber(log1file, mod_name) ==
                 fh.extractVersionNumber("mods.csv", mod_name))):
        print("Mod is already installed and has the newest version, too!")
        return True

    # Check if the mod is outdated and needs an update

    elif (((fh.extractVersionNumber(log1file, mod_name) !=
               fh.extractVersionNumber("mods.csv", mod_name))) and
                    fh.isNameInFile(log1file, mod_name)):
        print("Mod is outdated, starting update now")
        # TODO Update routine
    elif not fh.isNameInFile(log1file, mod_name):
        print("The mod isn't installed.")

    # TODO Searching for incompatibilities has to be done

    print("Searching for dependencies...")

    # Searching for dependencies

    splitter = [i.split(';', 1)[0] for i in csv_list[4]]

    if splitter:
        if csv_list != "None":
            for i in splitter:
                install_mod(i, getModData(i, csv_list[7], 7), mod_directory, csv_list)
    else:
        print("Mod has no dependencies")

    print("Downloading: " + mod_name)

    # Downloading the zipped mod

    path_to_file = dname + "/temp_mod_d/" + mod_name
    try:
        urllib.request.urlretrieve(address, path_to_file)
    except ValueError:
        # FIXME: Error, every second time install_mod() is called
        print("URL WRONG")
        return

    # Unzip the mod
    print("Unzipping...")
    unzip(path_to_file, dname + "/unzipped/")

    # Adding the modmanager.csv files to set the mod visible for this program

    registerMod(dname+ "/unzipped/", mod_name, the_mod_version, alpha_build)

    # Logging the installation of the mod
    print("Logging...")
    fh.logData(log1file, "%s|%s|%s|%s" % (mod_name ,the_mod_version, alpha_build, strftime("%Y-%m-%d %H:%M:%S", gmtime())))

    # Move the file into the mod folder
    print("Moving file into mod folder")

    try:
        copyTree("unzipped/", mod_directory)

    except FileExistsError:
        print("Already installed")

    # Delete files after this process

    finally:
        clearDownloadFolder("unzipped/")