diff --git a/python/mozperftest/mozperftest/mach_commands.py b/python/mozperftest/mozperftest/mach_commands.py
index f55d9588768d..6aca26618856 100644
--- a/python/mozperftest/mozperftest/mach_commands.py
+++ b/python/mozperftest/mozperftest/mach_commands.py
@@ -106,9 +106,7 @@ class PerftestTests(MachCommandBase):
             return False
 
     @Command(
-        "perftest-test",
-        category="testing",
-        description="Run perftest tests",
+        "perftest-test", category="testing", description="Run perftest tests",
     )
     @CommandArgument(
         "tests", default=None, nargs="*", help="Tests to run. By default will run all"
@@ -121,11 +119,7 @@ class PerftestTests(MachCommandBase):
         help="Skip flake8 and black",
     )
     @CommandArgument(
-        "-v",
-        "--verbose",
-        action="store_true",
-        default=False,
-        help="Verbose mode",
+        "-v", "--verbose", action="store_true", default=False, help="Verbose mode",
     )
     def run_tests(self, **kwargs):
         MachCommandBase.activate_virtualenv(self)
diff --git a/python/mozperftest/mozperftest/metrics/consoleoutput.py b/python/mozperftest/mozperftest/metrics/consoleoutput.py
index 97757be8ac66..3c7fac0783c3 100644
--- a/python/mozperftest/mozperftest/metrics/consoleoutput.py
+++ b/python/mozperftest/mozperftest/metrics/consoleoutput.py
@@ -17,7 +17,8 @@ RESULTS_TEMPLATE = """\
 
 
 class ConsoleOutput(Layer):
-    """Output metrics in the console."""
+    """Output metrics in the console.
+    """
 
     name = "console"
     activated = False
diff --git a/python/mozperftest/mozperftest/metrics/notebook/constant.py b/python/mozperftest/mozperftest/metrics/notebook/constant.py
index ca40d289d423..65cf8e60609c 100644
--- a/python/mozperftest/mozperftest/metrics/notebook/constant.py
+++ b/python/mozperftest/mozperftest/metrics/notebook/constant.py
@@ -9,7 +9,8 @@ from .transformer import get_transformers
 
 
 class Constant(object):
-    """A singleton class to store all constants."""
+    """A singleton class to store all constants.
+    """
 
     __instance = None
 
diff --git a/python/mozperftest/mozperftest/metrics/notebook/transformer.py b/python/mozperftest/mozperftest/metrics/notebook/transformer.py
index 4d996d2e531e..a9c4f3cd85e0 100644
--- a/python/mozperftest/mozperftest/metrics/notebook/transformer.py
+++ b/python/mozperftest/mozperftest/metrics/notebook/transformer.py
@@ -17,7 +17,8 @@ from mozperftest.runner import HERE
 
 
 class Transformer(object):
-    """Abstract class for data transformers."""
+    """Abstract class for data transformers.
+    """
 
     def __init__(self, files=None, custom_transformer=None, logger=None, prefix=None):
         """Initialize the transformer with files.
@@ -131,7 +132,8 @@ class Transformer(object):
 
 
 class SimplePerfherderTransformer:
-    """Transforms perfherder data into the standardized data format."""
+    """Transforms perfherder data into the standardized data format.
+    """
 
     entry_number = 0
 
diff --git a/python/mozperftest/mozperftest/metrics/notebook/transforms/single_json.py b/python/mozperftest/mozperftest/metrics/notebook/transforms/single_json.py
index 0c844cceec4d..95f93e4f2d4f 100644
--- a/python/mozperftest/mozperftest/metrics/notebook/transforms/single_json.py
+++ b/python/mozperftest/mozperftest/metrics/notebook/transforms/single_json.py
@@ -5,7 +5,8 @@ from mozperftest.metrics.notebook.utilities import flat
 
 
 class SingleJsonRetriever:
-    """Transforms perfherder data into the standardized data format."""
+    """Transforms perfherder data into the standardized data format.
+    """
 
     entry_number = 0
 
diff --git a/python/mozperftest/mozperftest/metrics/perfherder.py b/python/mozperftest/mozperftest/metrics/perfherder.py
index 94fe3f67b993..aba753122981 100644
--- a/python/mozperftest/mozperftest/metrics/perfherder.py
+++ b/python/mozperftest/mozperftest/metrics/perfherder.py
@@ -20,7 +20,8 @@ PERFHERDER_SCHEMA = pathlib.Path(
 
 
 class Perfherder(Layer):
-    """Output data in the perfherder format."""
+    """Output data in the perfherder format.
+    """
 
     name = "perfherder"
     activated = False
diff --git a/python/mozperftest/mozperftest/metrics/visualmetrics.py b/python/mozperftest/mozperftest/metrics/visualmetrics.py
index ec42ddf88f03..c560961bb857 100644
--- a/python/mozperftest/mozperftest/metrics/visualmetrics.py
+++ b/python/mozperftest/mozperftest/metrics/visualmetrics.py
@@ -40,7 +40,8 @@ class VisualData:
 
 
 class VisualMetrics(Layer):
-    """Wrapper around Browsertime's visualmetrics.py script"""
+    """Wrapper around Browsertime's visualmetrics.py script
+    """
 
     name = "visualmetrics"
     activated = False
diff --git a/python/mozperftest/mozperftest/runner.py b/python/mozperftest/mozperftest/runner.py
index a6d69ca4b4e8..4776a0ac009e 100644
--- a/python/mozperftest/mozperftest/runner.py
+++ b/python/mozperftest/mozperftest/runner.py
@@ -155,7 +155,8 @@ def run_tests(mach_cmd, **kwargs):
 
 
 def main(argv=sys.argv[1:]):
-    """Used when the runner is directly called from the shell"""
+    """Used when the runner is directly called from the shell
+    """
     _setup_path()
 
     from mozbuild.mozconfig import MozconfigLoader
diff --git a/python/mozperftest/mozperftest/system/__init__.py b/python/mozperftest/mozperftest/system/__init__.py
index e686df253260..f35d725954e1 100644
--- a/python/mozperftest/mozperftest/system/__init__.py
+++ b/python/mozperftest/mozperftest/system/__init__.py
@@ -14,15 +14,7 @@ def get_layers():
 
 def pick_system(env, flavor, mach_cmd):
     if flavor in ("desktop-browser", "xpcshell"):
-        return Layers(
-            env,
-            mach_cmd,
-            (
-                MacosDevice,
-                Profile,
-                ProxyRunner,
-            ),
-        )
+        return Layers(env, mach_cmd, (MacosDevice, Profile, ProxyRunner,))
     if flavor == "mobile-browser":
         return Layers(env, mach_cmd, (Profile, ProxyRunner, AndroidDevice))
     raise NotImplementedError(flavor)
diff --git a/python/mozperftest/mozperftest/system/android.py b/python/mozperftest/mozperftest/system/android.py
index be8f5ae1d957..8972acd106be 100644
--- a/python/mozperftest/mozperftest/system/android.py
+++ b/python/mozperftest/mozperftest/system/android.py
@@ -58,7 +58,8 @@ class ADBLoggedDevice(ADBDevice):
 
 
 class AndroidDevice(Layer):
-    """Use an android device via ADB"""
+    """Use an android device via ADB
+    """
 
     name = "android"
     activated = False
diff --git a/python/mozperftest/mozperftest/system/android_perf_tuner.py b/python/mozperftest/mozperftest/system/android_perf_tuner.py
index 924ddd0c9e8b..b807de2e5d73 100644
--- a/python/mozperftest/mozperftest/system/android_perf_tuner.py
+++ b/python/mozperftest/mozperftest/system/android_perf_tuner.py
@@ -39,8 +39,7 @@ class PerformanceTuner:
     def _set_value_and_check_exitcode(self, file_name, value):
         self.log.info("setting {} to {}".format(file_name, value))
         if self.device.shell_bool(
-            " ".join(["echo", str(value), ">", str(file_name)]),
-            timeout=self.timeout,
+            " ".join(["echo", str(value), ">", str(file_name)]), timeout=self.timeout,
         ):
             self.log.info("successfully set {} to {}".format(file_name, value))
         else:
diff --git a/python/mozperftest/mozperftest/system/macos.py b/python/mozperftest/mozperftest/system/macos.py
index f3a0bf7cde4c..d8f01a65ffda 100644
--- a/python/mozperftest/mozperftest/system/macos.py
+++ b/python/mozperftest/mozperftest/system/macos.py
@@ -21,7 +21,8 @@ POTENTIAL_DMGS = {
 
 
 class MacosDevice(Layer):
-    """Runs on macOS to mount DMGs if we see one."""
+    """Runs on macOS to mount DMGs if we see one.
+    """
 
     name = "macos"
     activated = platform.system() == "Darwin"
diff --git a/python/mozperftest/mozperftest/system/proxy.py b/python/mozperftest/mozperftest/system/proxy.py
index 02aeacff7a3a..5442d61484b3 100644
--- a/python/mozperftest/mozperftest/system/proxy.py
+++ b/python/mozperftest/mozperftest/system/proxy.py
@@ -58,7 +58,8 @@ class OutputHandler(object):
 
 
 class ProxyRunner(Layer):
-    """Use a proxy"""
+    """Use a proxy
+    """
 
     name = "proxy"
     activated = False
diff --git a/python/mozperftest/mozperftest/test/androidlog.py b/python/mozperftest/mozperftest/test/androidlog.py
index a9fdec51a974..7f5a91345e7b 100644
--- a/python/mozperftest/mozperftest/test/androidlog.py
+++ b/python/mozperftest/mozperftest/test/androidlog.py
@@ -6,7 +6,8 @@ from mozperftest.layers import Layer
 
 
 class AndroidLog(Layer):
-    """Runs an android log test."""
+    """Runs an android log test.
+    """
 
     name = "androidlog"
     activated = False
diff --git a/python/mozperftest/mozperftest/test/browsertime/runner.py b/python/mozperftest/mozperftest/test/browsertime/runner.py
index b7fcf8b042d0..54a70caa2ca3 100644
--- a/python/mozperftest/mozperftest/test/browsertime/runner.py
+++ b/python/mozperftest/mozperftest/test/browsertime/runner.py
@@ -47,7 +47,8 @@ class NodeException(Exception):
 
 
 class BrowsertimeRunner(NodeRunner):
-    """Runs a browsertime test."""
+    """Runs a browsertime test.
+    """
 
     name = "browsertime"
     activated = True
@@ -133,7 +134,8 @@ class BrowsertimeRunner(NodeRunner):
         return path
 
     def setup(self):
-        """Install browsertime and visualmetrics.py prerequisites and the Node.js package."""
+        """Install browsertime and visualmetrics.py prerequisites and the Node.js package.
+        """
         node = self.get_arg("node")
         if node is not None:
             os.environ["NODEJS"] = node
diff --git a/python/mozperftest/mozperftest/test/noderunner.py b/python/mozperftest/mozperftest/test/noderunner.py
index 9141b553341c..cc6baaacb0d4 100644
--- a/python/mozperftest/mozperftest/test/noderunner.py
+++ b/python/mozperftest/mozperftest/test/noderunner.py
@@ -24,7 +24,8 @@ class NodeRunner(Layer):
         self.node_path = os.path.abspath(find_node_executable()[0])
 
     def setup(self):
-        """Install the Node.js package."""
+        """Install the Node.js package.
+        """
         self.mach_cmd.activate_virtualenv()
         self.verify_node_install()
 
diff --git a/python/mozperftest/mozperftest/test/xpcshell.py b/python/mozperftest/mozperftest/test/xpcshell.py
index a22b8bc33d18..a169fa97b304 100644
--- a/python/mozperftest/mozperftest/test/xpcshell.py
+++ b/python/mozperftest/mozperftest/test/xpcshell.py
@@ -32,7 +32,8 @@ class XPCShellData:
 
 
 class XPCShell(Layer):
-    """Runs an xpcshell test."""
+    """Runs an xpcshell test.
+    """
 
     name = "xpcshell"
     activated = True
diff --git a/python/mozperftest/mozperftest/tests/test_browsertime.py b/python/mozperftest/mozperftest/tests/test_browsertime.py
index 0765d2ac8c1a..deba7cb520c0 100644
--- a/python/mozperftest/mozperftest/tests/test_browsertime.py
+++ b/python/mozperftest/mozperftest/tests/test_browsertime.py
@@ -109,8 +109,7 @@ def test_browser_failed(*mocked):
 )
 def test_browser_desktop(*mocked):
     mach_cmd, metadata, env = get_running_env(
-        browsertime_iterations=1,
-        browsertime_extra_options="one=1,two=2",
+        browsertime_iterations=1, browsertime_extra_options="one=1,two=2",
     )
     browser = env.layers[TEST]
     env.set_arg("tests", [EXAMPLE_TEST])
diff --git a/python/mozperftest/mozperftest/utils.py b/python/mozperftest/mozperftest/utils.py
index bb3b02ea0c28..80eac06fb2bc 100644
--- a/python/mozperftest/mozperftest/utils.py
+++ b/python/mozperftest/mozperftest/utils.py
@@ -90,7 +90,8 @@ def host_platform():
 
 
 class MachLogger:
-    """Wrapper around the mach logger to make logging simpler."""
+    """Wrapper around the mach logger to make logging simpler.
+    """
 
     def __init__(self, mach_cmd):
         self._logger = mach_cmd.log
@@ -241,7 +242,8 @@ def convert_day(day):
 
 
 def get_revision_namespace_url(route, day="yesterday"):
-    """Builds a URL to obtain all the namespaces of a given build route for a single day."""
+    """Builds a URL to obtain all the namespaces of a given build route for a single day.
+    """
     day = convert_day(day)
     return f"""{MULTI_REVISION_ROOT}/{route}.{day}.revision"""
 
diff --git a/python/mozrelease/mozrelease/scriptworker_canary.py b/python/mozrelease/mozrelease/scriptworker_canary.py
index 65c0e2118113..d59dfd3c704e 100644
--- a/python/mozrelease/mozrelease/scriptworker_canary.py
+++ b/python/mozrelease/mozrelease/scriptworker_canary.py
@@ -112,6 +112,5 @@ def push_canary(scriptworkers, addresses, ssh_key_secret):
         env = os.environ.copy()
         for task in tasks:
             subprocess.check_call(
-                base_command + [task],
-                env=env,
+                base_command + [task], env=env,
             )
diff --git a/taskcluster/taskgraph/test/conftest.py b/taskcluster/taskgraph/test/conftest.py
index 181517892cbe..588e06da20b4 100644
--- a/taskcluster/taskgraph/test/conftest.py
+++ b/taskcluster/taskgraph/test/conftest.py
@@ -21,8 +21,7 @@ def patch_prefherder(request):
 
     m = MonkeyPatch()
     m.setattr(
-        "taskgraph.util.bugbug._write_perfherder_data",
-        lambda lower_is_better: None,
+        "taskgraph.util.bugbug._write_perfherder_data", lambda lower_is_better: None,
     )
     yield
     m.undo()
diff --git a/taskcluster/test/conftest.py b/taskcluster/test/conftest.py
index c94613e68f55..e73af097d450 100644
--- a/taskcluster/test/conftest.py
+++ b/taskcluster/test/conftest.py
@@ -68,10 +68,7 @@ def create_tgg(responses, datadir):
         for url, filename in mock_requests.items():
             with open(os.path.join(datadir, filename)) as fh:
                 responses.add(
-                    responses.GET,
-                    url,
-                    json=json.load(fh),
-                    status=200,
+                    responses.GET, url, json=json.load(fh), status=200,
                 )
 
         # Still allow other real requests.
diff --git a/testing/condprofile/condprof/check_install.py b/testing/condprofile/condprof/check_install.py
index 676addc498f8..b3c048c4939d 100644
--- a/testing/condprofile/condprof/check_install.py
+++ b/testing/condprofile/condprof/check_install.py
@@ -16,7 +16,8 @@ TOPDIR = os.path.join(os.path.dirname(__file__), "..")
 
 
 def install_reqs():
-    """We install requirements one by one, with no cache, and in isolated mode."""
+    """ We install requirements one by one, with no cache, and in isolated mode.
+    """
     try:
         import yaml  # NOQA
 
@@ -62,7 +63,7 @@ def install_reqs():
 
 
 def check():
-    """Called by the runner.
+    """ Called by the runner.
 
     The check function will restart the app after
     all deps have been installed.
diff --git a/testing/condprofile/condprof/client.py b/testing/condprofile/condprof/client.py
index 20c0d2cccae5..c99bc40ca305 100644
--- a/testing/condprofile/condprof/client.py
+++ b/testing/condprofile/condprof/client.py
@@ -55,7 +55,8 @@ class RetriesError(Exception):
 
 
 def _check_service(url):
-    """Sanity check to see if we can reach the service root url."""
+    """Sanity check to see if we can reach the service root url.
+    """
 
     def _check():
         exists, _ = check_exists(url, all_types=True)
@@ -69,7 +70,8 @@ def _check_service(url):
 
 
 def _check_profile(profile_dir):
-    """Checks for prefs we need to remove or set."""
+    """Checks for prefs we need to remove or set.
+    """
     to_remove = ("gfx.blacklist.", "marionette.")
 
     def _keep_pref(name, value):
diff --git a/testing/condprofile/condprof/helpers.py b/testing/condprofile/condprof/helpers.py
index befe9e033187..7dba88cfc2b2 100644
--- a/testing/condprofile/condprof/helpers.py
+++ b/testing/condprofile/condprof/helpers.py
@@ -13,7 +13,8 @@ def is_mobile(platform):
 
 
 class TabSwitcher:
-    """Helper used to create tabs and circulate in them."""
+    """ Helper used to create tabs and circulate in them.
+    """
 
     def __init__(self, session, options):
         self.handles = None
diff --git a/testing/condprofile/condprof/metadata.py b/testing/condprofile/condprof/metadata.py
index fb38fe223528..1a8837e7339e 100644
--- a/testing/condprofile/condprof/metadata.py
+++ b/testing/condprofile/condprof/metadata.py
@@ -15,7 +15,8 @@ METADATA_NAME = "condprofile.json"
 
 
 class Metadata(MutableMapping):
-    """dict-like class that holds metadata for a profile."""
+    """ dict-like class that holds metadata for a profile.
+    """
 
     def __init__(self, profile_dir):
         self.metadata_file = os.path.join(profile_dir, METADATA_NAME)
diff --git a/testing/condprofile/condprof/runner.py b/testing/condprofile/condprof/runner.py
index 8eee547d969e..65d5a01fa700 100644
--- a/testing/condprofile/condprof/runner.py
+++ b/testing/condprofile/condprof/runner.py
@@ -130,7 +130,8 @@ class Runner:
         ).run(not self.visible)
 
     async def run_all(self):
-        """Runs the conditioned profile builders"""
+        """Runs the conditioned profile builders
+        """
         if self.scenario != "all":
             selected_scenario = [self.scenario]
         else:
diff --git a/tools/lint/python/black.py b/tools/lint/python/black.py
index 7a78f5b44b77..cbd84996c875 100644
--- a/tools/lint/python/black.py
+++ b/tools/lint/python/black.py
@@ -41,9 +41,7 @@ def get_black_version(binary):
     """
     try:
         output = subprocess.check_output(
-            [binary, "--version"],
-            stderr=subprocess.STDOUT,
-            universal_newlines=True,
+            [binary, "--version"], stderr=subprocess.STDOUT, universal_newlines=True,
         )
     except subprocess.CalledProcessError as e:
         output = e.output
diff --git a/tools/lint/python/black_requirements.in b/tools/lint/python/black_requirements.in
index 52ee1d9aa18f..7c9d150acbe9 100644
--- a/tools/lint/python/black_requirements.in
+++ b/tools/lint/python/black_requirements.in
@@ -1 +1 @@
-black==20.8b1
+black==19.10b0
diff --git a/tools/lint/python/black_requirements.txt b/tools/lint/python/black_requirements.txt
index 3183909f24c6..e5affab7689d 100644
--- a/tools/lint/python/black_requirements.txt
+++ b/tools/lint/python/black_requirements.txt
@@ -4,78 +4,72 @@
 #
 #    pip-compile --generate-hashes --output-file=tools/lint/python/black_requirements.txt tools/lint/python/black_requirements.in
 #
-appdirs==1.4.4 \
-    --hash=sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41 \
-    --hash=sha256:a841dacd6b99318a741b166adb07e19ee71a274450e68237b4650ca1055ab128 \
+appdirs==1.4.3 \
+    --hash=sha256:9e5896d1372858f8dd3344faf4e5014d21849c756c8d5701f78f8a103b372d92 \
+    --hash=sha256:d8b24664561d0d34ddfaec54636d502d7cea6e29c3eaf68f3df6180863e2166e \
     # via black
-black==20.8b1 \
-    --hash=sha256:1c02557aa099101b9d21496f8a914e9ed2222ef70336404eeeac8edba836fbea \
-    --hash=sha256:70b62ef1527c950db59062cda342ea224d772abdf6adc58b86a45421bab20a6b \
+attrs==19.1.0 \
+    --hash=sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79 \
+    --hash=sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399 \
+    # via black
+black==19.10b0 \
+    --hash=sha256:1b30e59be925fafc1ee4565e5e08abef6b03fe455102883820fe5ee2e4734e0b \
+    --hash=sha256:c2edb73a08e9e0e6f65a0e6af18b059b8b1cdd5bef997d7a0b181df93dc81539 \
     # via -r tools/lint/python/black_requirements.in
-click==7.1.2 \
-    --hash=sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a \
-    --hash=sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc \
+click==7.0 \
+    --hash=sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13 \
+    --hash=sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7 \
     # via black
-mypy-extensions==0.4.3 \
-    --hash=sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d \
-    --hash=sha256:2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8 \
+pathspec==0.7.0 \
+    --hash=sha256:163b0632d4e31cef212976cf57b43d9fd6b0bac6e67c26015d611a647d5e7424 \
+    --hash=sha256:562aa70af2e0d434367d9790ad37aed893de47f1693e4201fd1d3dca15d19b96 \
     # via black
-pathspec==0.8.0 \
-    --hash=sha256:7d91249d21749788d07a2d0f94147accd8f845507400749ea19c1ec9054a12b0 \
-    --hash=sha256:da45173eb3a6f2a5a487efba21f050af2b41948be6ab52b6a1e3ff22bb8b7061 \
+regex==2020.1.8 \
+    --hash=sha256:07b39bf943d3d2fe63d46281d8504f8df0ff3fe4c57e13d1656737950e53e525 \
+    --hash=sha256:0932941cdfb3afcbc26cc3bcf7c3f3d73d5a9b9c56955d432dbf8bbc147d4c5b \
+    --hash=sha256:0e182d2f097ea8549a249040922fa2b92ae28be4be4895933e369a525ba36576 \
+    --hash=sha256:10671601ee06cf4dc1bc0b4805309040bb34c9af423c12c379c83d7895622bb5 \
+    --hash=sha256:23e2c2c0ff50f44877f64780b815b8fd2e003cda9ce817a7fd00dea5600c84a0 \
+    --hash=sha256:26ff99c980f53b3191d8931b199b29d6787c059f2e029b2b0c694343b1708c35 \
+    --hash=sha256:27429b8d74ba683484a06b260b7bb00f312e7c757792628ea251afdbf1434003 \
+    --hash=sha256:3e77409b678b21a056415da3a56abfd7c3ad03da71f3051bbcdb68cf44d3c34d \
+    --hash=sha256:4e8f02d3d72ca94efc8396f8036c0d3bcc812aefc28ec70f35bb888c74a25161 \
+    --hash=sha256:4eae742636aec40cf7ab98171ab9400393360b97e8f9da67b1867a9ee0889b26 \
+    --hash=sha256:6a6ae17bf8f2d82d1e8858a47757ce389b880083c4ff2498dba17c56e6c103b9 \
+    --hash=sha256:6a6ba91b94427cd49cd27764679024b14a96874e0dc638ae6bdd4b1a3ce97be1 \
+    --hash=sha256:7bcd322935377abcc79bfe5b63c44abd0b29387f267791d566bbb566edfdd146 \
+    --hash=sha256:98b8ed7bb2155e2cbb8b76f627b2fd12cf4b22ab6e14873e8641f266e0fb6d8f \
+    --hash=sha256:bd25bb7980917e4e70ccccd7e3b5740614f1c408a642c245019cff9d7d1b6149 \
+    --hash=sha256:d0f424328f9822b0323b3b6f2e4b9c90960b24743d220763c7f07071e0778351 \
+    --hash=sha256:d58e4606da2a41659c84baeb3cfa2e4c87a74cec89a1e7c56bee4b956f9d7461 \
+    --hash=sha256:e3cd21cc2840ca67de0bbe4071f79f031c81418deb544ceda93ad75ca1ee9f7b \
+    --hash=sha256:e6c02171d62ed6972ca8631f6f34fa3281d51db8b326ee397b9c83093a6b7242 \
+    --hash=sha256:e7c7661f7276507bce416eaae22040fd91ca471b5b33c13f8ff21137ed6f248c \
+    --hash=sha256:ecc6de77df3ef68fee966bb8cb4e067e84d4d1f397d0ef6fce46913663540d77 \
     # via black
-regex==2020.7.14 \
-    --hash=sha256:0dc64ee3f33cd7899f79a8d788abfbec168410be356ed9bd30bbd3f0a23a7204 \
-    --hash=sha256:1269fef3167bb52631ad4fa7dd27bf635d5a0790b8e6222065d42e91bede4162 \
-    --hash=sha256:14a53646369157baa0499513f96091eb70382eb50b2c82393d17d7ec81b7b85f \
-    --hash=sha256:3a3af27a8d23143c49a3420efe5b3f8cf1a48c6fc8bc6856b03f638abc1833bb \
-    --hash=sha256:46bac5ca10fb748d6c55843a931855e2727a7a22584f302dd9bb1506e69f83f6 \
-    --hash=sha256:4c037fd14c5f4e308b8370b447b469ca10e69427966527edcab07f52d88388f7 \
-    --hash=sha256:51178c738d559a2d1071ce0b0f56e57eb315bcf8f7d4cf127674b533e3101f88 \
-    --hash=sha256:5ea81ea3dbd6767873c611687141ec7b06ed8bab43f68fad5b7be184a920dc99 \
-    --hash=sha256:6961548bba529cac7c07af2fd4d527c5b91bb8fe18995fed6044ac22b3d14644 \
-    --hash=sha256:75aaa27aa521a182824d89e5ab0a1d16ca207318a6b65042b046053cfc8ed07a \
-    --hash=sha256:7a2dd66d2d4df34fa82c9dc85657c5e019b87932019947faece7983f2089a840 \
-    --hash=sha256:8a51f2c6d1f884e98846a0a9021ff6861bdb98457879f412fdc2b42d14494067 \
-    --hash=sha256:9c568495e35599625f7b999774e29e8d6b01a6fb684d77dee1f56d41b11b40cd \
-    --hash=sha256:9eddaafb3c48e0900690c1727fba226c4804b8e6127ea409689c3bb492d06de4 \
-    --hash=sha256:bbb332d45b32df41200380fff14712cb6093b61bd142272a10b16778c418e98e \
-    --hash=sha256:bc3d98f621898b4a9bc7fecc00513eec8f40b5b83913d74ccb445f037d58cd89 \
-    --hash=sha256:c11d6033115dc4887c456565303f540c44197f4fc1a2bfb192224a301534888e \
-    --hash=sha256:c50a724d136ec10d920661f1442e4a8b010a4fe5aebd65e0c2241ea41dbe93dc \
-    --hash=sha256:d0a5095d52b90ff38592bbdc2644f17c6d495762edf47d876049cfd2968fbccf \
-    --hash=sha256:d6cff2276e502b86a25fd10c2a96973fdb45c7a977dca2138d661417f3728341 \
-    --hash=sha256:e46d13f38cfcbb79bfdb2964b0fe12561fe633caf964a77a5f8d4e45fe5d2ef7 \
+toml==0.10.0 \
+    --hash=sha256:229f81c57791a41d65e399fc06bf0848bab550a9dfd5ed66df18ce5f05e73d5c \
+    --hash=sha256:235682dd292d5899d361a811df37e04a8828a5b1da3115886b73cf81ebc9100e \
     # via black
-toml==0.10.1 \
-    --hash=sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f \
-    --hash=sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88 \
-    # via black
-typed-ast==1.4.1 \
-    --hash=sha256:0666aa36131496aed8f7be0410ff974562ab7eeac11ef351def9ea6fa28f6355 \
-    --hash=sha256:0c2c07682d61a629b68433afb159376e24e5b2fd4641d35424e462169c0a7919 \
-    --hash=sha256:249862707802d40f7f29f6e1aad8d84b5aa9e44552d2cc17384b209f091276aa \
-    --hash=sha256:24995c843eb0ad11a4527b026b4dde3da70e1f2d8806c99b7b4a7cf491612652 \
-    --hash=sha256:269151951236b0f9a6f04015a9004084a5ab0d5f19b57de779f908621e7d8b75 \
-    --hash=sha256:4083861b0aa07990b619bd7ddc365eb7fa4b817e99cf5f8d9cf21a42780f6e01 \
-    --hash=sha256:498b0f36cc7054c1fead3d7fc59d2150f4d5c6c56ba7fb150c013fbc683a8d2d \
-    --hash=sha256:4e3e5da80ccbebfff202a67bf900d081906c358ccc3d5e3c8aea42fdfdfd51c1 \
-    --hash=sha256:6daac9731f172c2a22ade6ed0c00197ee7cc1221aa84cfdf9c31defeb059a907 \
-    --hash=sha256:715ff2f2df46121071622063fc7543d9b1fd19ebfc4f5c8895af64a77a8c852c \
-    --hash=sha256:73d785a950fc82dd2a25897d525d003f6378d1cb23ab305578394694202a58c3 \
-    --hash=sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b \
-    --hash=sha256:8ce678dbaf790dbdb3eba24056d5364fb45944f33553dd5869b7580cdbb83614 \
-    --hash=sha256:aaee9905aee35ba5905cfb3c62f3e83b3bec7b39413f0a7f19be4e547ea01ebb \
-    --hash=sha256:bcd3b13b56ea479b3650b82cabd6b5343a625b0ced5429e4ccad28a8973f301b \
-    --hash=sha256:c9e348e02e4d2b4a8b2eedb48210430658df6951fa484e59de33ff773fbd4b41 \
-    --hash=sha256:d205b1b46085271b4e15f670058ce182bd1199e56b317bf2ec004b6a44f911f6 \
-    --hash=sha256:d43943ef777f9a1c42bf4e552ba23ac77a6351de620aa9acf64ad54933ad4d34 \
-    --hash=sha256:d5d33e9e7af3b34a40dc05f498939f0ebf187f07c385fd58d591c533ad8562fe \
-    --hash=sha256:fc0fea399acb12edbf8a628ba8d2312f583bdbdb3335635db062fa98cf71fca4 \
-    --hash=sha256:fe460b922ec15dd205595c9b5b99e2f056fd98ae8f9f56b888e7a17dc2b757e7 \
-    # via black
-typing-extensions==3.7.4.3 \
-    --hash=sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918 \
-    --hash=sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c \
-    --hash=sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f \
+typed-ast==1.4.0 \
+    --hash=sha256:1170afa46a3799e18b4c977777ce137bb53c7485379d9706af8a59f2ea1aa161 \
+    --hash=sha256:18511a0b3e7922276346bcb47e2ef9f38fb90fd31cb9223eed42c85d1312344e \
+    --hash=sha256:262c247a82d005e43b5b7f69aff746370538e176131c32dda9cb0f324d27141e \
+    --hash=sha256:2b907eb046d049bcd9892e3076c7a6456c93a25bebfe554e931620c90e6a25b0 \
+    --hash=sha256:354c16e5babd09f5cb0ee000d54cfa38401d8b8891eefa878ac772f827181a3c \
+    --hash=sha256:48e5b1e71f25cfdef98b013263a88d7145879fbb2d5185f2a0c79fa7ebbeae47 \
+    --hash=sha256:4e0b70c6fc4d010f8107726af5fd37921b666f5b31d9331f0bd24ad9a088e631 \
+    --hash=sha256:630968c5cdee51a11c05a30453f8cd65e0cc1d2ad0d9192819df9978984529f4 \
+    --hash=sha256:66480f95b8167c9c5c5c87f32cf437d585937970f3fc24386f313a4c97b44e34 \
+    --hash=sha256:71211d26ffd12d63a83e079ff258ac9d56a1376a25bc80b1cdcdf601b855b90b \
+    --hash=sha256:7954560051331d003b4e2b3eb822d9dd2e376fa4f6d98fee32f452f52dd6ebb2 \
+    --hash=sha256:838997f4310012cf2e1ad3803bce2f3402e9ffb71ded61b5ee22617b3a7f6b6e \
+    --hash=sha256:95bd11af7eafc16e829af2d3df510cecfd4387f6453355188342c3e79a2ec87a \
+    --hash=sha256:bc6c7d3fa1325a0c6613512a093bc2a2a15aeec350451cbdf9e1d4bffe3e3233 \
+    --hash=sha256:cc34a6f5b426748a507dd5d1de4c1978f2eb5626d51326e43280941206c209e1 \
+    --hash=sha256:d755f03c1e4a51e9b24d899561fec4ccaf51f210d52abdf8c07ee2849b212a36 \
+    --hash=sha256:d7c45933b1bdfaf9f36c579671fec15d25b06c8398f113dab64c18ed1adda01d \
+    --hash=sha256:d896919306dd0aa22d0132f62a1b78d11aaf4c9fc5b3410d3c666b818191630a \
+    --hash=sha256:fdc1c9bbf79510b76408840e009ed65958feba92a88833cdceecff93ae8fff66 \
+    --hash=sha256:ffde2fbfad571af120fcbfbbc61c72469e72f550d676c3342492a9dfdefb8f12 \
     # via black
diff --git a/tools/lint/rust/__init__.py b/tools/lint/rust/__init__.py
index 60135adcab9b..13bf44bc4126 100644
--- a/tools/lint/rust/__init__.py
+++ b/tools/lint/rust/__init__.py
@@ -117,9 +117,7 @@ def get_rustfmt_version(binary):
     """
     try:
         output = subprocess.check_output(
-            [binary, "--version"],
-            stderr=subprocess.STDOUT,
-            universal_newlines=True,
+            [binary, "--version"], stderr=subprocess.STDOUT, universal_newlines=True,
         )
     except subprocess.CalledProcessError as e:
         output = e.output
diff --git a/tools/moztreedocs/mach_commands.py b/tools/moztreedocs/mach_commands.py
index 79d3ba2bc299..186b3d94082c 100644
--- a/tools/moztreedocs/mach_commands.py
+++ b/tools/moztreedocs/mach_commands.py
@@ -215,9 +215,9 @@ class Documentation(MachCommandBase):
 
     def _dump_sphinx_backtrace(self):
         """
-        If there is a sphinx dump file, read and return
-        its content.
-        By default, it isn't displayed.
+            If there is a sphinx dump file, read and return
+            its content.
+            By default, it isn't displayed.
         """
         pattern = "sphinx-err-*"
         output = ""
@@ -263,7 +263,7 @@ class Documentation(MachCommandBase):
 
     def _post_process_html(self, savedir):
         """
-        Perform some operations on the generated html to fix some URL
+            Perform some operations on the generated html to fix some URL
         """
         MERMAID_VERSION = "8.4.4"
         for root, _, files in os.walk(savedir):
diff --git a/tools/moztreedocs/upload.py b/tools/moztreedocs/upload.py
index d827537e69d1..72769652cb3d 100644
--- a/tools/moztreedocs/upload.py
+++ b/tools/moztreedocs/upload.py
@@ -91,8 +91,7 @@ def s3_set_redirects(redirects):
         configuration["RoutingRules"].append(rule)
 
     s3.put_bucket_website(
-        Bucket=bucket,
-        WebsiteConfiguration=configuration,
+        Bucket=bucket, WebsiteConfiguration=configuration,
     )
 
 
@@ -121,10 +120,7 @@ def s3_delete_missing(files, key_prefix=None):
     while files_to_delete:
         keys_to_remove = [{"Key": key} for key in files_to_delete[:query_size]]
         response = s3.delete_objects(
-            Bucket=bucket,
-            Delete={
-                "Objects": keys_to_remove,
-            },  # NOQA
+            Bucket=bucket, Delete={"Objects": keys_to_remove,},  # NOQA
         )
         pprint(response, indent=2)
         files_to_delete = files_to_delete[query_size:]