Revert "Revert "Bump Black to latest version (#712)""

This reverts commit b32a0ae.

stripe/api_resources/source.py

@@ -36,8 +36,7 @@ def detach(self, idempotency_key=None, **params):
             )
 
     def source_transactions(self, **params):
-        """source_transactions is deprecated, use Source.list_source_transactions instead.
-        """
+        """source_transactions is deprecated, use Source.list_source_transactions instead."""
         return self.request(
             "get", self.instance_url() + "/source_transactions", params
         )

stripe/api_resources/subscription_item.py

@@ -22,8 +22,7 @@ class SubscriptionItem(
     OBJECT_NAME = "subscription_item"
 
     def usage_record_summaries(self, **params):
-        """usage_record_summaries is deprecated, use SubscriptionItem.list_usage_record_summaries instead.
-        """
+        """usage_record_summaries is deprecated, use SubscriptionItem.list_usage_record_summaries instead."""
         return self.request(
             "get", self.instance_url() + "/usage_record_summaries", params
         )

stripe/oauth_error.py

@@ -22,8 +22,10 @@ def construct_error_object(self):
         if self.json_body is None:
             return None
 
-        return stripe.api_resources.error_object.OAuthErrorObject.construct_from(
-            self.json_body, stripe.api_key
+        return (
+            stripe.api_resources.error_object.OAuthErrorObject.construct_from(
+                self.json_body, stripe.api_key
+            )
         )
 
 

tests/test_integration.py

@@ -134,8 +134,10 @@ def do_GET(self):
 
         self.setup_mock_server(MockServerRequestHandler)
 
-        stripe.default_http_client = stripe.http_client.new_default_http_client(
-            proxy="http://localhost:%s" % self.mock_server_port
+        stripe.default_http_client = (
+            stripe.http_client.new_default_http_client(
+                proxy="http://localhost:%s" % self.mock_server_port
+            )
         )
         stripe.Balance.retrieve()
         assert MockServerRequestHandler.num_requests == 1

tox.ini

@@ -37,7 +37,7 @@ passenv = LDFLAGS CFLAGS
 [testenv:fmt]
 description = run code formatting using black
 basepython = python3.9
-deps = black==19.3b0
+deps = black==20.8b1
 commands = black . {posargs}
 skip_install = true