diff --git a/.gitignore b/.gitignore
index 41acc93..eef0f60 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,4 +9,4 @@ testproject/.coverage
 testproject/coverage.xml
 testproject/htmlcov/
 .tox
-.idea
\ No newline at end of file
+.idea
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 084660d..06c9472 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -14,5 +14,3 @@ sphinx:
 python:
    install:
    - requirements: docs/requirements.txt
-
-
diff --git a/captcha/management/commands/captcha_create_pool.py b/captcha/management/commands/captcha_create_pool.py
index ef08905..588c28c 100644
--- a/captcha/management/commands/captcha_create_pool.py
+++ b/captcha/management/commands/captcha_create_pool.py
@@ -5,7 +5,6 @@
 
 
 class Command(BaseCommand):
-
     help = "Create a pool of random captchas."
 
     def add_arguments(self, parser):
diff --git a/captcha/migrations/0001_initial.py b/captcha/migrations/0001_initial.py
index e12b7ef..01f5521 100644
--- a/captcha/migrations/0001_initial.py
+++ b/captcha/migrations/0001_initial.py
@@ -4,7 +4,6 @@
 
 
 class Migration(migrations.Migration):
-
     dependencies = []
 
     operations = [
diff --git a/captcha/migrations/0002_alter_captchastore_id.py b/captcha/migrations/0002_alter_captchastore_id.py
index 472352d..2c89e16 100644
--- a/captcha/migrations/0002_alter_captchastore_id.py
+++ b/captcha/migrations/0002_alter_captchastore_id.py
@@ -4,7 +4,6 @@
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
         ("captcha", "0001_initial"),
     ]
diff --git a/docs/advanced.rst b/docs/advanced.rst
index 1f35912..44430bd 100644
--- a/docs/advanced.rst
+++ b/docs/advanced.rst
@@ -307,4 +307,3 @@ This sample generator that returns six random digits::
         for i in range(6):
             ret += str(random.randint(0,9))
         return ret, ret
-