diff --git a/scripts/gen_ed25519_key.py b/scripts/gen_ed25519_key.py
index 7bb9181a..2b9ef757 100755
--- a/scripts/gen_ed25519_key.py
+++ b/scripts/gen_ed25519_key.py
@@ -5,6 +5,7 @@
 easier standalone use. It could easily be a `console_script` though.
 
 """
+
 from __future__ import print_function
 
 import base64
diff --git a/src/scriptworker/client.py b/src/scriptworker/client.py
index 59f3573d..42aa2966 100644
--- a/src/scriptworker/client.py
+++ b/src/scriptworker/client.py
@@ -9,6 +9,7 @@
     log (logging.Logger): the log object for the module
 
 """
+
 import asyncio
 import logging
 import os
diff --git a/src/scriptworker/config.py b/src/scriptworker/config.py
index 68f1708c..244417d7 100644
--- a/src/scriptworker/config.py
+++ b/src/scriptworker/config.py
@@ -7,6 +7,7 @@
         credentials, if they aren't in the config file or environment.
 
 """
+
 import argparse
 import logging
 import os
diff --git a/src/scriptworker/context.py b/src/scriptworker/context.py
index 92238058..dbaebffc 100644
--- a/src/scriptworker/context.py
+++ b/src/scriptworker/context.py
@@ -10,6 +10,7 @@
     DEFAULT_MAX_CONCURRENT_DOWNLOADS (int): default max concurrent downloads
 
 """
+
 import asyncio
 import json
 import logging
diff --git a/src/scriptworker/cot/generate.py b/src/scriptworker/cot/generate.py
index 6d29d814..457b78da 100644
--- a/src/scriptworker/cot/generate.py
+++ b/src/scriptworker/cot/generate.py
@@ -5,6 +5,7 @@
     log (logging.Logger): the log object for this module.
 
 """
+
 import logging
 import os
 
diff --git a/src/scriptworker/cot/verify.py b/src/scriptworker/cot/verify.py
index bf701e51..fff8e772 100644
--- a/src/scriptworker/cot/verify.py
+++ b/src/scriptworker/cot/verify.py
@@ -719,12 +719,8 @@ async def download_cot_artifact(chain, task_id, path):
     link = chain.get_link(task_id)
     log.debug("Verifying {} is in {} cot artifacts...".format(path, task_id))
     if not link.cot:
-        log.warning(
-            'Chain of Trust for "{}" in {} does not exist. See above log for more details. \
-Skipping download of this artifact'.format(
-                path, task_id
-            )
-        )
+        log.warning('Chain of Trust for "{}" in {} does not exist. See above log for more details. \
+Skipping download of this artifact'.format(path, task_id))
         return
 
     if path not in link.cot["artifacts"]:
@@ -2105,8 +2101,7 @@ def verify_cot_cmdln(args=None, event_loop=None):
 
     """
     args = args or sys.argv[1:]
-    parser = argparse.ArgumentParser(
-        description="""Verify a given task's chain of trust.
+    parser = argparse.ArgumentParser(description="""Verify a given task's chain of trust.
 
 Given a task's `task_id`, get its task definition, then trace its chain of
 trust back to the tree.  This doesn't verify chain of trust artifact signatures,
@@ -2118,8 +2113,7 @@ def verify_cot_cmdln(args=None, event_loop=None):
 or in the CREDS_FILES http://bit.ly/2fVMu0A
 
 If you are verifying against a private github repo, please also set in environment
-SCRIPTWORKER_GITHUB_OAUTH_TOKEN to an OAUTH token with read permissions to the repo"""
-    )
+SCRIPTWORKER_GITHUB_OAUTH_TOKEN to an OAUTH token with read permissions to the repo""")
     parser.add_argument("task_id", help="the task id to test")
     parser.add_argument("--task-type", help="the task type to test", choices=sorted(get_valid_task_types().keys()), required=True)
     parser.add_argument("--cleanup", help="clean up the temp dir afterwards", dest="cleanup", action="store_true", default=False)
@@ -2186,15 +2180,13 @@ def create_test_workdir(args=None, event_loop=None):
 
     """
     args = args or sys.argv[1:]
-    parser = argparse.ArgumentParser(
-        description="""Populate a test `work_dir`.
+    parser = argparse.ArgumentParser(description="""Populate a test `work_dir`.
 
 Given a scriptworker task's `task_id`, get its task definition, write it to
 `./work/task.json`, then download its `upstreamArtifacts` and put them in
 `./work/cot/TASK_ID/PATH`.
 
-This is helpful in manually testing a *script run."""
-    )
+This is helpful in manually testing a *script run.""")
     parser.add_argument("--path", help="relative path to the work_dir", default="work")
     parser.add_argument("--overwrite", help="overwrite an existing work_dir", action="store_true")
     parser.add_argument("task_id", help="the task id to test")
diff --git a/src/scriptworker/ed25519.py b/src/scriptworker/ed25519.py
index c7020452..caf67672 100644
--- a/src/scriptworker/ed25519.py
+++ b/src/scriptworker/ed25519.py
@@ -5,6 +5,7 @@
     log (logging.Logger): the log object for the module
 
 """
+
 import argparse
 import base64
 import functools
@@ -140,13 +141,11 @@ def verify_ed25519_signature_cmdln(args=None, exception=SystemExit):
 
     """
     args = args or sys.argv[1:]
-    parser = argparse.ArgumentParser(
-        description="""Verify an ed25519 signature from the command line.
+    parser = argparse.ArgumentParser(description="""Verify an ed25519 signature from the command line.
 
 Given a file and its detached signature, verify that it has been signed with
 a valid key. This key can be specified on the command line; otherwise we'll
-default to ``config['ed25519_public_keys']``."""
-    )
+default to ``config['ed25519_public_keys']``.""")
     parser.add_argument("--pubkey", help="path to a base64-encoded ed25519 pubkey, optional")
     parser.add_argument("file_path")
     parser.add_argument("sig_path")
diff --git a/src/scriptworker/log.py b/src/scriptworker/log.py
index b3a90916..443ad9e3 100644
--- a/src/scriptworker/log.py
+++ b/src/scriptworker/log.py
@@ -5,6 +5,7 @@
     log (logging.Logger): the log object for this module.
 
 """
+
 import asyncio
 import logging
 import logging.handlers
diff --git a/src/scriptworker/utils.py b/src/scriptworker/utils.py
index c62be003..9e16166b 100644
--- a/src/scriptworker/utils.py
+++ b/src/scriptworker/utils.py
@@ -5,6 +5,7 @@
     log (logging.Logger): the log object for the module
 
 """
+
 import asyncio
 import functools
 import hashlib
diff --git a/src/scriptworker/worker.py b/src/scriptworker/worker.py
index 7d656632..3c04cd83 100644
--- a/src/scriptworker/worker.py
+++ b/src/scriptworker/worker.py
@@ -5,6 +5,7 @@
     log (logging.Logger): the log object for the module.
 
 """
+
 import asyncio
 import logging
 import signal
diff --git a/tests/__init__.py b/tests/__init__.py
index 77794451..c6153728 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Test base files"""
+
 import asyncio
 import json
 import os
diff --git a/tests/test_config.py b/tests/test_config.py
index aa908423..693397c3 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Test scriptworker.config"""
+
 import json
 import os
 from copy import deepcopy
diff --git a/tests/test_context.py b/tests/test_context.py
index 1538634c..ff534cf8 100644
--- a/tests/test_context.py
+++ b/tests/test_context.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Test scriptworker.context"""
+
 import asyncio
 import json
 import os
diff --git a/tests/test_cot_generate.py b/tests/test_cot_generate.py
index d3283e1f..bca3a8be 100644
--- a/tests/test_cot_generate.py
+++ b/tests/test_cot_generate.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Test scriptworker.cot.generate"""
+
 import logging
 import os
 
diff --git a/tests/test_cot_verify.py b/tests/test_cot_verify.py
index 810a4513..4b014423 100644
--- a/tests/test_cot_verify.py
+++ b/tests/test_cot_verify.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Test scriptworker.cot.verify"""
+
 import json
 import logging
 import os
@@ -2179,7 +2180,7 @@ async def test_trace_back_to_tree_diff_repo(chain, decision_link, build_link, do
 async def test_trace_back_to_tree_mobile_staging_repos_dont_access_restricted_scopes(
     mobile_chain, mobile_github_release_link, mobile_build_link, source_url, raises, mocker
 ):
-    (source_url, raises) = ("https://github.com/mozilla-mobile/reference-browser", False)
+    source_url, raises = ("https://github.com/mozilla-mobile/reference-browser", False)
     mobile_github_release_link.task["metadata"]["source"] = source_url
     mobile_chain.links = [mobile_github_release_link, mobile_build_link]
     mocker.patch.object(mobile_chain, "is_try_or_pull_request", new=create_async(result=False))
diff --git a/tests/test_integration.py b/tests/test_integration.py
index 73139655..a263abca 100644
--- a/tests/test_integration.py
+++ b/tests/test_integration.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Scriptworker integration tests."""
+
 import asyncio
 import json
 import logging
@@ -36,8 +37,7 @@ def read_integration_creds():
     creds = read_worker_creds(key="integration_credentials")
     if creds:
         return creds
-    raise Exception(
-        """To run integration tests, put your worker-test clientId creds, in json format,
+    raise Exception("""To run integration tests, put your worker-test clientId creds, in json format,
 in one of these files:
 
     {files}
@@ -54,10 +54,7 @@ def read_integration_creds():
 
 This clientId will need the scope assume:project:taskcluster:worker-test-scopes
 
-To skip integration tests, set the environment variable NO_CREDENTIALS_TESTS""".format(
-            files=CREDS_FILES
-        )
-    )
+To skip integration tests, set the environment variable NO_CREDENTIALS_TESTS""".format(files=CREDS_FILES))
 
 
 def build_config(override, basedir):
diff --git a/tests/test_log.py b/tests/test_log.py
index d85138fd..eada47d6 100644
--- a/tests/test_log.py
+++ b/tests/test_log.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Test scriptworker.log"""
+
 import asyncio
 import logging
 import os
diff --git a/tests/test_production.py b/tests/test_production.py
index a32cc8bc..495aae97 100644
--- a/tests/test_production.py
+++ b/tests/test_production.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Scriptworker production CoT verification tests."""
+
 import json
 import logging
 import os
diff --git a/tests/test_task.py b/tests/test_task.py
index 40f5514f..1b38e324 100644
--- a/tests/test_task.py
+++ b/tests/test_task.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Test scriptworker.task"""
+
 import asyncio
 import glob
 import json
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 952e39c5..0fe45dd0 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Test scriptworker.utils"""
+
 import asyncio
 import os
 import re
diff --git a/tests/test_worker.py b/tests/test_worker.py
index ba4b5b0e..cbcc6c69 100644
--- a/tests/test_worker.py
+++ b/tests/test_worker.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # coding=utf-8
 """Test scriptworker.worker"""
+
 import asyncio
 import json
 import os