diff --git a/.github/workflows/lint_python.yml b/.github/workflows/lint_python.yml
index ff6fc08..7f6ba9d 100644
--- a/.github/workflows/lint_python.yml
+++ b/.github/workflows/lint_python.yml
@@ -8,17 +8,14 @@ jobs:
       - uses: actions/setup-python@v2
       - run: pip install --upgrade pip wheel
       - run: pip install bandit black codespell flake8 flake8-bugbear
-                         flake8-comprehensions isort mypy pytest pyupgrade safety
+                         flake8-comprehensions isort mypy pyupgrade safety
       - run: bandit --recursive --skip B101,B404,B603 .
-      - run: black --check . || true
+      - run: black --diff .
       - run: codespell --ignore-words-list="commitish"
       - run: flake8 . --count --ignore=C408,E203,F841,W503 --max-complexity=10
                       --max-line-length=143 --show-source --statistics
-      - run: isort --check-only --profile black . || true
-      - run: pip install -r requirements.txt || pip install --editable . || true
-      - run: mkdir --parents --verbose .mypy_cache
+      - run: isort --check-only --profile black .
+      - run: pip install --editable .
       - run: mypy --ignore-missing-imports --install-types --non-interactive .
-      - run: pytest . || true
-      - run: pytest --doctest-modules . || true
       - run: shopt -s globstar && pyupgrade --py36-plus **/*.py || true
       - run: safety check
diff --git a/cherry_picker/cherry_picker.py b/cherry_picker/cherry_picker.py
index f393770..1233cbd 100755
--- a/cherry_picker/cherry_picker.py
+++ b/cherry_picker/cherry_picker.py
@@ -1,17 +1,16 @@
 #!/usr/bin/env python3
-#  -*- coding: utf-8 -*-
 
-import click
 import collections
 import enum
 import os
-import subprocess
-import webbrowser
 import re
+import subprocess
 import sys
+import webbrowser
+
+import click
 import requests
 import toml
-
 from gidgethub import sansio
 
 from . import __version__
@@ -167,7 +166,7 @@ def get_pr_url(self, base_branch, head_branch):
         return f"https://github.com/{self.config['team']}/{self.config['repo']}/compare/{base_branch}...{self.username}:{head_branch}?expand=1"
 
     def fetch_upstream(self):
-        """ git fetch <upstream> """
+        """git fetch <upstream>"""
         set_state(WORKFLOW_STATES.FETCHING_UPSTREAM)
         cmd = ["git", "fetch", self.upstream, "--no-tags"]
         self.run_cmd(cmd)
@@ -182,7 +181,7 @@ def run_cmd(self, cmd):
         return output.decode("utf-8")
 
     def checkout_branch(self, branch_name):
-        """ git checkout -b <branch_name> """
+        """git checkout -b <branch_name>"""
         cmd = [
             "git",
             "checkout",
@@ -219,7 +218,7 @@ def get_commit_message(self, commit_sha):
             return message
 
     def checkout_default_branch(self):
-        """ git checkout default branch """
+        """git checkout default branch"""
         set_state(WORKFLOW_STATES.CHECKING_OUT_DEFAULT_BRANCH)
 
         cmd = "git", "checkout", self.config["default_branch"]
@@ -236,7 +235,7 @@ def status(self):
         return self.run_cmd(cmd)
 
     def cherry_pick(self):
-        """ git cherry-pick -x <commit_sha1> """
+        """git cherry-pick -x <commit_sha1>"""
         cmd = ["git", "cherry-pick", "-x", self.commit_sha1]
         try:
             click.echo(self.run_cmd(cmd))
@@ -261,7 +260,7 @@ def get_exit_message(self, branch):
 """
 
     def amend_commit_message(self, cherry_pick_branch):
-        """ prefix the commit message with (X.Y) """
+        """prefix the commit message with (X.Y)"""
 
         commit_prefix = ""
         if self.prefix_commit:
@@ -283,7 +282,7 @@ def amend_commit_message(self, cherry_pick_branch):
         return updated_commit_message
 
     def push_to_remote(self, base_branch, head_branch, commit_message=""):
-        """ git push <origin> <branchname> """
+        """git push <origin> <branchname>"""
         set_state(WORKFLOW_STATES.PUSHING_TO_REMOTE)
 
         cmd = ["git", "push"]
@@ -607,7 +606,16 @@ class state:
 @click.argument("branches", nargs=-1)
 @click.pass_context
 def cherry_pick_cli(
-    ctx, dry_run, pr_remote, abort, status, push, auto_pr, config_path, commit_sha1, branches
+    ctx,
+    dry_run,
+    pr_remote,
+    abort,
+    status,
+    push,
+    auto_pr,
+    config_path,
+    commit_sha1,
+    branches,
 ):
     """cherry-pick COMMIT_SHA1 into target BRANCHES."""
 
diff --git a/cherry_picker/test.py b/cherry_picker/test_cherry_picker.py
similarity index 99%
rename from cherry_picker/test.py
rename to cherry_picker/test_cherry_picker.py
index c01ba26..a2919b0 100644
--- a/cherry_picker/test.py
+++ b/cherry_picker/test_cherry_picker.py
@@ -4,30 +4,30 @@
 from collections import ChainMap
 from unittest import mock
 
-import pytest
 import click
+import pytest
 
 from .cherry_picker import (
-    get_base_branch,
-    get_current_branch,
-    get_full_sha_from_short,
-    get_author_info_from_short_sha,
+    DEFAULT_CONFIG,
+    WORKFLOW_STATES,
     CherryPicker,
-    InvalidRepoException,
     CherryPickException,
-    normalize_commit_message,
-    DEFAULT_CONFIG,
-    get_sha1_from,
+    InvalidRepoException,
     find_config,
-    load_config,
-    validate_sha,
     from_git_rev_read,
-    reset_state,
-    set_state,
+    get_author_info_from_short_sha,
+    get_base_branch,
+    get_current_branch,
+    get_full_sha_from_short,
+    get_sha1_from,
     get_state,
+    load_config,
     load_val_from_git_cfg,
+    normalize_commit_message,
+    reset_state,
     reset_stored_config_ref,
-    WORKFLOW_STATES,
+    set_state,
+    validate_sha,
 )
 
 
@@ -945,4 +945,4 @@ def test_abort_cherry_pick_success(
 
 
 def test_cli_invoked():
-    subprocess.check_call('cherry_picker --help'.split())
+    subprocess.check_call("cherry_picker --help".split())
diff --git a/pytest.ini b/pytest.ini
index 137647b..bdb4f56 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -5,4 +5,3 @@ filterwarnings =
     error
 junit_duration_report = call
 junit_suite_name = cherry_picker_test_suite
-testpaths = cherry_picker/test.py