diff --git a/app/emojos.py b/app/emojos.py
index 5de4af3..15c5c81 100644
--- a/app/emojos.py
+++ b/app/emojos.py
@@ -13,76 +13,93 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-import botocore.session
 import operator
-import requests
-import serverless_wsgi
 import urllib.parse
 
+import botocore.session
+import requests
+import serverless_wsgi
 from flask import Flask, redirect, render_template, request, url_for
 
 app = Flask(__name__)
 
+
 class ForbiddenEndpointError(Exception):
     pass
 
-@app.route('/<domain>')
+
+@app.route("/<domain>")
 def emojo(domain):
-    if request.args.get('show_all', '') == 'on':
+    if request.args.get("show_all", "") == "on":
         show_all = True
     else:
         show_all = False
-    if request.args.get('show_animated', '') == 'on':
+    if request.args.get("show_animated", "") == "on":
         show_animated = True
     else:
         show_animated = False
 
     try:
-        url = urllib.parse.urlunsplit(('https', domain, '/api/v1/custom_emojis', '', ''))
+        url = urllib.parse.urlunsplit(
+            ("https", domain, "/api/v1/custom_emojis", "", "")
+        )
         response = requests.get(url)
         if response.status_code == 401:
             raise ForbiddenEndpointError
 
         if show_all:
-            emojo = sorted(response.json(), key=operator.itemgetter('shortcode'))
+            emojo = sorted(response.json(), key=operator.itemgetter("shortcode"))
         else:
-            emojo = sorted(filter(lambda x: x.get('visible_in_picker', True), response.json()),
-                           key=operator.itemgetter('shortcode'))
-        return render_template('emojo.html', domain=domain, emojo=emojo, show_animated=show_animated)
-    except requests.exceptions.RequestException as e:
-        return render_template('oh_no.html', domain=domain)
+            emojo = sorted(
+                filter(lambda x: x.get("visible_in_picker", True), response.json()),
+                key=operator.itemgetter("shortcode"),
+            )
+        return render_template(
+            "emojo.html", domain=domain, emojo=emojo, show_animated=show_animated
+        )
+    except requests.exceptions.RequestException:
+        return render_template("oh_no.html", domain=domain)
     except ForbiddenEndpointError:
-        return render_template('forbidden.html', domain=domain)
+        return render_template("forbidden.html", domain=domain)
 
 
-@app.route('/favicon.ico')
-@app.route('/robots.txt')
+@app.route("/favicon.ico")
+@app.route("/robots.txt")
 def no_content():
-    return ('', 204)
+    return ("", 204)
 
 
-@app.route('/code')
+@app.route("/code")
 def code():
-    context = request.environ.get('context')
+    context = request.environ.get("context")
     session = botocore.session.get_session()
     # region name is detected from lambda environment
-    client = session.create_client('lambda')
-    code = client.get_function(FunctionName=context.function_name, Qualifier=context.function_version)
-    return redirect(code['Code']['Location'], code=303)
+    client = session.create_client("lambda")
+    code = client.get_function(
+        FunctionName=context.function_name, Qualifier=context.function_version
+    )
+    return redirect(code["Code"]["Location"], code=303)
 
 
-@app.route('/', methods=('GET', 'POST'))
+@app.route("/", methods=("GET", "POST"))
 def index():
-    if request.method == 'POST':
-        if 'instance' in request.form:
-            show_all = request.form.get('show_all')
-            show_animated = request.form.get('show_animated')
+    if request.method == "POST":
+        if "instance" in request.form:
+            show_all = request.form.get("show_all")
+            show_animated = request.form.get("show_animated")
             return redirect(
-                url_for('emojo', domain=request.form['instance'], show_all=show_all, show_animated=show_animated))
+                url_for(
+                    "emojo",
+                    domain=request.form["instance"],
+                    show_all=show_all,
+                    show_animated=show_animated,
+                )
+            )
         else:
-            return redirect(url_for('index'))
+            return redirect(url_for("index"))
     else:
-        return render_template('index.html')
+        return render_template("index.html")
+
 
 def handle_request(event, context):
     return serverless_wsgi.handle_request(app, event, context)