fix string concats left over by black

src/flask/app.py

@@ -1931,7 +1931,7 @@ class Flask(_PackageBoundObject):
             if not from_error_handler:
                 raise
             self.logger.exception(
-                "Request finalizing failed with an " "error while handling an error"
+                "Request finalizing failed with an error while handling an error"
             )
         return response
 

src/flask/cli.py

@@ -266,7 +266,7 @@ def get_version(ctx, param, value):
     import werkzeug
     from . import __version__
 
-    message = "Python %(python)s\n" "Flask %(flask)s\n" "Werkzeug %(werkzeug)s"
+    message = "Python %(python)s\nFlask %(flask)s\nWerkzeug %(werkzeug)s"
     click.echo(
         message
         % {

src/flask/ctx.py

@@ -437,9 +437,10 @@ class RequestContext(object):
             if app_ctx is not None:
                 app_ctx.pop(exc)
 
-            assert (
-                rv is self
-            ), "Popped wrong request context.  " "(%r instead of %r)" % (rv, self)
+            assert rv is self, "Popped wrong request context. (%r instead of %r)" % (
+                rv,
+                self,
+            )
 
     def auto_pop(self, exc):
         if self.request.environ.get("flask._preserve_context") or (

src/flask/helpers.py

@@ -94,7 +94,7 @@ def _endpoint_from_view_func(view_func):
     """Internal helper that returns the default endpoint for a given
     function.  This always is the function name.
     """
-    assert view_func is not None, "expected view func if endpoint " "is not provided."
+    assert view_func is not None, "expected view func if endpoint is not provided."
     return view_func.__name__
 
 
@@ -598,9 +598,7 @@ def send_file(
     headers = Headers()
     if as_attachment:
         if attachment_filename is None:
-            raise TypeError(
-                "filename unavailable, required for " "sending as attachment"
-            )
+            raise TypeError("filename unavailable, required for sending as attachment")
 
         if not isinstance(attachment_filename, text_type):
             attachment_filename = attachment_filename.decode("utf-8")

src/flask/testing.py

@@ -156,7 +156,7 @@ class FlaskClient(Client):
         """
         if self.cookie_jar is None:
             raise RuntimeError(
-                "Session transactions only make sense " "with cookies enabled."
+                "Session transactions only make sense with cookies enabled."
             )
         app = self.application
         environ_overrides = kwargs.setdefault("environ_overrides", {})
@@ -167,7 +167,7 @@ class FlaskClient(Client):
             sess = session_interface.open_session(app, c.request)
             if sess is None:
                 raise RuntimeError(
-                    "Session backend did not open a session. " "Check the configuration"
+                    "Session backend did not open a session. Check the configuration"
                 )
 
             # Since we have to open a new request context for the session