diff --git a/personal_data/fetchers/tavex.py b/personal_data/fetchers/tavex.py
index bff1b4d..b3990d6 100644
--- a/personal_data/fetchers/tavex.py
+++ b/personal_data/fetchers/tavex.py
@@ -4,12 +4,8 @@ By request of my colleague.
 """
 
 import abc
-from decimal import Decimal
 import dataclasses
-import datetime
-import logging
-import re
-import secrets
+from decimal import Decimal
 
 import bs4
 
@@ -17,11 +13,13 @@ import personal_data.html_util
 import personal_data.parse_util
 from personal_data.data import DeduplicateMode, Scraper
 
+
 def parse_dkk_price(dkk: str) -> Decimal:
     print(dkk)
     if dkk.strip() == '-':
         return None
-    return Decimal(dkk.removesuffix(' DKK').replace(',','.'))
+    return Decimal(dkk.removesuffix(' DKK').replace(',', '.'))
+
 
 @dataclasses.dataclass(frozen=True)
 class TavexScraperBase(Scraper):
@@ -54,15 +52,24 @@ class TavexScraperBase(Scraper):
         for soup_row in soup.children:
             if isinstance(soup_row, bs4.NavigableString):
                 continue
-            table.append([soup_cell.get_text().strip() for soup_cell in soup_row if not isinstance(soup_cell, bs4.NavigableString)])
+            table.append(
+                [
+                    soup_cell.get_text().strip()
+                    for soup_cell in soup_row
+                    if not isinstance(soup_cell, bs4.NavigableString)
+                ],
+            )
 
         yield {
-                'time': NOW,
-                'buy': parse_dkk_price(table[1][1]),
-                'sell': parse_dkk_price(table[1][2]),
-                'spread_percentage': Decimal(table[1][3].removesuffix('%')) if len(table[1]) > 3 else None
+            'time': NOW,
+            'buy': parse_dkk_price(table[1][1]),
+            'sell': parse_dkk_price(table[1][2]),
+            'spread_percentage': Decimal(table[1][3].removesuffix('%'))
+            if len(table[1]) > 3
+            else None,
         }
 
+
 @dataclasses.dataclass(frozen=True)
 class TavexScraperGold(TavexScraperBase):
     dataset_name = 'prices_tavex_gold'
@@ -72,6 +79,7 @@ class TavexScraperGold(TavexScraperBase):
     def page_url() -> str:
         return 'https://tavex.dk/guld/1oz-canadisk-maple-leaf-guldmont/'
 
+
 @dataclasses.dataclass(frozen=True)
 class TavexScraperSilver(TavexScraperBase):
     dataset_name = 'prices_tavex_silver'
diff --git a/personal_data/html_util.py b/personal_data/html_util.py
index e00f8bd..91d2b5d 100644
--- a/personal_data/html_util.py
+++ b/personal_data/html_util.py
@@ -57,21 +57,22 @@ def normalize_soup(soup) -> bytes:
         text = normalize_soup_lxml(soup).text_content()
     return normalize_text(text)
 
+
 def data_attributes_of_element(e):
     for attr_key in list(e.attrs.keys()):
         if attr_key.startswith('data-'):
             yield attr_key
 
+
 def has_data_attribute(e) -> bool:
     for attr_key in data_attributes_of_element(e):
         return True
     return False
 
-def normalize_soup_slightly(soup,
-                            classes=True,
-                            scripts=True,
-                            comments=True,
-                            data_attributes=True):
+
+def normalize_soup_slightly(
+    soup, classes=True, scripts=True, comments=True, data_attributes=True,
+):
     """Perform soup normalization."""
     # Little if any content
     for tag in HTML_TAGS_MOSTLY_CONTENTLESS:
diff --git a/personal_data/parse_util.py b/personal_data/parse_util.py
index 7ebeca1..868f55f 100644
--- a/personal_data/parse_util.py
+++ b/personal_data/parse_util.py
@@ -30,7 +30,10 @@ def parse_duration(text: str) -> datetime.timedelta:
 
 
 def parse_response_datetime(response) -> datetime.datetime:
-    return datetime.datetime.strptime(response.headers['Date'], FORMAT_DATE_HEADER).replace(tzinfo=datetime.UTC)
+    return datetime.datetime.strptime(
+        response.headers['Date'], FORMAT_DATE_HEADER,
+    ).replace(tzinfo=datetime.UTC)
+
 
 def parse_time(text: str) -> datetime.datetime:
     text = text.replace('\n', ' ')