diff --git a/tools/db_from_tsv.py b/tools/db_from_tsv.py
index 588d221..14e8dd7 100755
--- a/tools/db_from_tsv.py
+++ b/tools/db_from_tsv.py
@@ -4,8 +4,8 @@
 import os
 
 
-tsv_path = sys.argv[1] if len(sys.argv) > 1 else 'kanji.tsv'
-db_path = sys.argv[2] if len(sys.argv) > 2 else 'kanji.db'
+tsv_path = sys.argv[1] if len(sys.argv) > 1 else "kanji.tsv"
+db_path = sys.argv[2] if len(sys.argv) > 2 else "kanji.db"
 
 db_path = os.path.abspath(db_path)
 
@@ -18,8 +18,7 @@
 conn = sqlite3.connect(db_path)
 
 
-create_sql = \
-"""CREATE TABLE characters (
+create_sql = """CREATE TABLE characters (
     character TEXT NOT NULL PRIMARY KEY,
     stroke_count INTEGER DEFAULT NULL,
     onyomi TEXT DEFAULT "[]",
@@ -45,20 +44,22 @@
 )"""
 
 conn.execute(create_sql)
-fields = [l.split()[0] for l in create_sql.split('\n') if l.startswith(' ')]
+fields = [l.split()[0] for l in create_sql.split("\n") if l.startswith(" ")]
 
 
 db_kanji = []
 
-for l in open(tsv_path, 'r', encoding='utf-8'):
-    d = l.replace('\n', '').split('\t')
+for l in open(tsv_path, "r", encoding="utf-8"):
+    d = l.replace("\n", "").split("\t")
     if len(d) != 7:
         continue
     kanji = d[0].strip()
     if len(kanji) != 1:
         continue
 
-insert_sql = F'INSERT into characters ({",".join(fields)}) values ({",".join("?"*len(fields))})'
+insert_sql = (
+    f'INSERT into characters ({",".join(fields)}) values ({",".join("?"*len(fields))})'
+)
 conn.executemany(insert_sql, db_kanji)
 
 
diff --git a/tools/db_to_tsv.py b/tools/db_to_tsv.py
index 0f1eb33..075fcf9 100755
--- a/tools/db_to_tsv.py
+++ b/tools/db_to_tsv.py
@@ -4,33 +4,59 @@
 import os
 
 
-db_path = sys.argv[1] if len(sys.argv) > 1 else 'kanji.db'
-tsv_path = sys.argv[2] if len(sys.argv) > 2 else 'kanji.tsv'
+db_path = sys.argv[1] if len(sys.argv) > 1 else "kanji.db"
+tsv_path = sys.argv[2] if len(sys.argv) > 2 else "kanji.tsv"
 
 db_path = os.path.abspath(db_path)
 
 con = sqlite3.connect(db_path)
 crs = con.cursor()
 
-crs.execute('SELECT * FROM characters')
+crs.execute("SELECT * FROM characters")
 data = crs.fetchall()
 
 
-f = open(tsv_path, 'w', encoding='utf-8')
+f = open(tsv_path, "w", encoding="utf-8")
+
 
 def fw(*args):
-    if '\t' in ''.join(args):
-        raise ValueError('TSV ERROR')
+    if "\t" in "".join(args):
+        raise ValueError("TSV ERROR")
+
+    f.write("\t".join(args))
+    f.write("\n")
 
-    f.write('\t'.join(args))
-    f.write('\n')
 
-fw('Kanji', 'Meanings', 'Primitive Alternatives', 'Primitives', 'Heisig Keyword (1-5)', 'Heisig Keyword (6+)', 'Primitive Keywords', 'Heisig Story', 'Heisig Comment', 'Radicals')
+fw(
+    "Kanji",
+    "Meanings",
+    "Primitive Alternatives",
+    "Primitives",
+    "Heisig Keyword (1-5)",
+    "Heisig Keyword (6+)",
+    "Primitive Keywords",
+    "Heisig Story",
+    "Heisig Comment",
+    "Radicals",
+)
+
 
 def j2c(d):
-    return ', '.join(json.loads(d))
+    return ", ".join(json.loads(d))
+
 
 for d in data:
-    fw(d[0], j2c(d[5]), d[12], d[10], d[15] or '', d[16] or '', j2c(d[11]), d[17] or '', d[18] or '', d[19])
+    fw(
+        d[0],
+        j2c(d[5]),
+        d[12],
+        d[10],
+        d[15] or "",
+        d[16] or "",
+        j2c(d[11]),
+        d[17] or "",
+        d[18] or "",
+        d[19],
+    )
 
 f.close()
diff --git a/tools/kanjivg_cleanup.py b/tools/kanjivg_cleanup.py
index 3d92c55..c33f806 100644
--- a/tools/kanjivg_cleanup.py
+++ b/tools/kanjivg_cleanup.py
@@ -1,21 +1,17 @@
 import os
 
 kanjivg_dir = os.path.join(
-    os.path.dirname(os.path.abspath(__file__)),
-    '..',
-    'addon',
-    'kanjivg'
+    os.path.dirname(os.path.abspath(__file__)), "..", "addon", "kanjivg"
 )
 
 for fname in os.listdir(kanjivg_dir):
-
-    if fname.endswith('.svg'):
-        with open(os.path.join(kanjivg_dir, fname), 'r') as f:
+    if fname.endswith(".svg"):
+        with open(os.path.join(kanjivg_dir, fname), "r") as f:
             svg = f.read()
 
-        idx = svg.find('<svg')
+        idx = svg.find("<svg")
         if idx > 0:
             svg = svg[idx:]
 
-        with open(os.path.join(kanjivg_dir, fname), 'w') as f:
+        with open(os.path.join(kanjivg_dir, fname), "w") as f:
             f.write(svg)