qrcode.init_app(app)

    babel.init_app(app)

    _default_secret_key = base64.b64encode(secrets.token_bytes()).decode("utf-8")

    app.config["SECRET_KEY"] = os.environ.get("SECRET_KEY", _default_secret_key)

    app.config["LANGUAGES"] = ["en", "de", "fr", "lb"]

    app.config.setdefault("SUPPORTING_FEE", 40)

    app.config.setdefault("REGULAR_FEE", 120)

    app.config.setdefault("DIGICASH_ENABLED", True)

    app.config.setdefault("CRYPTOCURRENCIES", dict())

    @babel.localeselector

    def get_locale():

        if not g.get("lang_code", None):

            g.lang_code = request.accept_languages.best_match(app.config["LANGUAGES"])

        return g.lang_code

    from .views import root_page

    app.register_blueprint(root_page)

          </ul>

        </div>

        {% set address = config["CRYPTOCURRENCIES"][form.payment.data]["ADDRESS"] %}

        {% set crypto_url=config["CRYPTOCURRENCIES"][form.payment.data]["URL"].format(address=address, amount=price, year=year, username=form.username.data) %}

        <div><img class="cryptoqrcode" src="{{ qrcode(crypto_url) }}" /></div>

      </div>

    {% elif form.payment.data == 'digicash' %}

      <div class="digicash">

        {% set payconiq_url='https://payconiq.com/t/1/62068d4d71445b0006dfbd5d?A={amount}&R=Membership&D={username}'.format(amount=price, username=form.username.data) %}

        <div><p>{% trans %}Pay with DigiCash/Payconiq!{% endtrans %}</p></div>

        <div><img class="cryptoqrcode" src="{{ qrcode(payconiq_url) }}" /></div>

      </div>

    {% endif %}

    <div class="signature">

      <p class="membersignature">{% trans %}Luxembourg, the{% endtrans %}</p>

      <p class="adminsignature">

        {{ _("Signature of your legal representative") if form.minor_member.data else _("Your signature") }}

      </p>

    </div>

    <footer>

      <hr />

      <b>C</b>haos <b>C</b>omputer <b>C</b>lub <b>L</b>ëtzebuerg A.S.B.L.<br />

      Halle Victor Hugo - 60 Avenue Victor Hugo L-1750 Luxembourg (Europe)<br />

      info@c3l.lu - <a href="https://c3l.lu">http://c3l.lu</a>

@root_page.route("/", methods=("GET", "POST"))

def index():

    form = MembershipForm()

    choices = [

        ("cash", gettext("by cash")),

        ("wire transfer", gettext("by wire transfer")),

    ]

    if current_app.config["DIGICASH_ENABLED"]:

        choices.append(("digicash", gettext("by DigiCash/Payconiq")))

    choices.extend(

        (cryptocurrency_label, " ".join((gettext("by"), cryptocurrency_label.title())))

        for cryptocurrency_label, options in current_app.config[

            "CRYPTOCURRENCIES"

        ].items()

        if options["ENABLED"]

    )

    form.payment.choices = choices

    if form.validate_on_submit():

                current_conversion_r = requests.get(

                    current_app.config["CONVERSION_URL"], timeout=30

                )

                current_conversion_r.raise_for_status()

            except:

                return render_template("index.html", form=form, crypto_error=True), 503

            else:

                current_conversion = current_conversion_r.json()

                commodity = current_app.config["CRYPTOCURRENCIES"][form.payment.data][

                    "COMMODITY"

                ]

                price = current_conversion[commodity][status.upper()]

            price = price * 100

        now = date.today()

        xml_data = {

            "status": status,

            "name": form.fullname.data,

            "birthday": form.birthday.data

            if form.birthday.data is not None

            else date(9999, 12, 12),

            "username": form.username.data,

            "email": form.email.data,

            "address": re.sub(