diff --git a/django/contrib/auth/management/commands/changepassword.py b/django/contrib/auth/management/commands/changepassword.py
index a69362f05c..619ce8710a 100644
--- a/django/contrib/auth/management/commands/changepassword.py
+++ b/django/contrib/auth/management/commands/changepassword.py
@@ -44,7 +44,7 @@ class Command(BaseCommand):
         except UserModel.DoesNotExist:
             raise CommandError("user '%s' does not exist" % username)
 
-        self.stdout.write("Changing password for user '%s'\n" % u)
+        self.stdout.write("Changing password for user '%s'" % u)
 
         MAX_TRIES = 3
         count = 0
@@ -54,7 +54,7 @@ class Command(BaseCommand):
             p1 = self._get_pass()
             p2 = self._get_pass("Password (again): ")
             if p1 != p2:
-                self.stdout.write("Passwords do not match. Please try again.\n")
+                self.stdout.write('Passwords do not match. Please try again.')
                 count += 1
                 # Don't validate passwords that don't match.
                 continue
diff --git a/django/contrib/contenttypes/management/commands/remove_stale_contenttypes.py b/django/contrib/contenttypes/management/commands/remove_stale_contenttypes.py
index b1f966b032..e2856bb0f7 100644
--- a/django/contrib/contenttypes/management/commands/remove_stale_contenttypes.py
+++ b/django/contrib/contenttypes/management/commands/remove_stale_contenttypes.py
@@ -71,7 +71,7 @@ This list doesn't include any cascade deletions to data outside of Django's
 models (uncommon).
 
 Are you sure you want to delete these content types?
-If you're unsure, answer 'no'.\n""" % content_type_display)
+If you're unsure, answer 'no'.""" % content_type_display)
                     ok_to_delete = input("Type 'yes' to continue, or 'no' to cancel: ")
                 else:
                     ok_to_delete = 'yes'
diff --git a/django/contrib/gis/management/commands/ogrinspect.py b/django/contrib/gis/management/commands/ogrinspect.py
index 03d31899bf..d4a7b16400 100644
--- a/django/contrib/gis/management/commands/ogrinspect.py
+++ b/django/contrib/gis/management/commands/ogrinspect.py
@@ -130,4 +130,4 @@ class Command(BaseCommand):
                 rev_mapping[ogr_fld], ogr_fld) for ogr_fld in ds[options['layer_key']].fields
             )
             output.extend(["    '%s': '%s'," % (options['geom_name'], mapping_dict[options['geom_name']]), '}'])
-        return '\n'.join(output) + '\n'
+        return '\n'.join(output)
diff --git a/django/contrib/sessions/management/commands/clearsessions.py b/django/contrib/sessions/management/commands/clearsessions.py
index ee08ac34aa..c9d0cef2f0 100644
--- a/django/contrib/sessions/management/commands/clearsessions.py
+++ b/django/contrib/sessions/management/commands/clearsessions.py
@@ -15,5 +15,7 @@ class Command(BaseCommand):
         try:
             engine.SessionStore.clear_expired()
         except NotImplementedError:
-            self.stderr.write("Session engine '%s' doesn't support clearing "
-                              "expired sessions.\n" % settings.SESSION_ENGINE)
+            self.stderr.write(
+                "Session engine '%s' doesn't support clearing expired "
+                "sessions." % settings.SESSION_ENGINE
+            )
diff --git a/django/contrib/staticfiles/management/commands/collectstatic.py b/django/contrib/staticfiles/management/commands/collectstatic.py
index ce2691aff2..252b83987f 100644
--- a/django/contrib/staticfiles/management/commands/collectstatic.py
+++ b/django/contrib/staticfiles/management/commands/collectstatic.py
@@ -190,9 +190,10 @@ class Command(BaseCommand):
         post_processed_count = len(collected['post_processed'])
 
         if self.verbosity >= 1:
-            template = ("\n%(modified_count)s %(identifier)s %(action)s"
-                        "%(destination)s%(unmodified)s%(post_processed)s.\n")
-            summary = template % {
+            summary = (
+                "\n%(modified_count)s %(identifier)s %(action)s"
+                "%(destination)s%(unmodified)s%(post_processed)s."
+            ) % {
                 'modified_count': modified_count,
                 'identifier': 'static file' + ('' if modified_count == 1 else 's'),
                 'action': 'symlinked' if self.symlink else 'copied',
diff --git a/django/core/management/base.py b/django/core/management/base.py
index 0091908fed..4fc2dd163d 100644
--- a/django/core/management/base.py
+++ b/django/core/management/base.py
@@ -474,7 +474,7 @@ class BaseCommand:
                     }
                 )
             )
-            self.stdout.write(self.style.NOTICE("Run 'python manage.py migrate' to apply them.\n"))
+            self.stdout.write(self.style.NOTICE("Run 'python manage.py migrate' to apply them."))
 
     def handle(self, *args, **options):
         """
diff --git a/django/core/management/commands/compilemessages.py b/django/core/management/commands/compilemessages.py
index 00ab2db6fc..42d723962f 100644
--- a/django/core/management/commands/compilemessages.py
+++ b/django/core/management/commands/compilemessages.py
@@ -122,7 +122,7 @@ class Command(BaseCommand):
             futures = []
             for i, (dirpath, f) in enumerate(locations):
                 if self.verbosity > 0:
-                    self.stdout.write('processing file %s in %s\n' % (f, dirpath))
+                    self.stdout.write('processing file %s in %s' % (f, dirpath))
                 po_path = os.path.join(dirpath, f)
                 if has_bom(po_path):
                     self.stderr.write(
diff --git a/django/core/management/commands/flush.py b/django/core/management/commands/flush.py
index a187a65684..6ccc9994dd 100644
--- a/django/core/management/commands/flush.py
+++ b/django/core/management/commands/flush.py
@@ -68,7 +68,7 @@ Are you sure you want to do this?
                     "  * At least one of the expected database tables doesn't exist.\n"
                     "  * The SQL was invalid.\n"
                     "Hint: Look at the output of 'django-admin sqlflush'. "
-                    "That's the SQL this command wasn't able to run.\n" % (
+                    "That's the SQL this command wasn't able to run." % (
                         connection.settings_dict['NAME'],
                     )
                 ) from exc
@@ -79,4 +79,4 @@ Are you sure you want to do this?
                 # respond as if the database had been migrated from scratch.
                 emit_post_migrate_signal(verbosity, interactive, database)
         else:
-            self.stdout.write("Flush cancelled.\n")
+            self.stdout.write('Flush cancelled.')
diff --git a/django/core/management/commands/inspectdb.py b/django/core/management/commands/inspectdb.py
index 1b173de475..9913b670ab 100644
--- a/django/core/management/commands/inspectdb.py
+++ b/django/core/management/commands/inspectdb.py
@@ -31,7 +31,7 @@ class Command(BaseCommand):
     def handle(self, **options):
         try:
             for line in self.handle_inspection(options):
-                self.stdout.write("%s\n" % line)
+                self.stdout.write(line)
         except NotImplementedError:
             raise CommandError("Database inspection isn't supported for the currently selected database backend.")
 
diff --git a/django/core/management/commands/loaddata.py b/django/core/management/commands/loaddata.py
index bdc0c03178..29f7630ff7 100644
--- a/django/core/management/commands/loaddata.py
+++ b/django/core/management/commands/loaddata.py
@@ -130,7 +130,7 @@ class Command(BaseCommand):
             sequence_sql = connection.ops.sequence_reset_sql(no_style(), self.models)
             if sequence_sql:
                 if self.verbosity >= 2:
-                    self.stdout.write("Resetting sequences\n")
+                    self.stdout.write('Resetting sequences')
                 with connection.cursor() as cursor:
                     for line in sequence_sql:
                         cursor.execute(line)
diff --git a/django/core/management/commands/makemessages.py b/django/core/management/commands/makemessages.py
index db2c58ac50..25ca126971 100644
--- a/django/core/management/commands/makemessages.py
+++ b/django/core/management/commands/makemessages.py
@@ -337,7 +337,7 @@ class Command(BaseCommand):
 
         if self.verbosity > 1:
             self.stdout.write(
-                'examining files with the extensions: %s\n'
+                'examining files with the extensions: %s'
                 % get_text_list(list(self.extensions), 'and')
             )
 
@@ -384,7 +384,7 @@ class Command(BaseCommand):
             # Build po files for each selected locale
             for locale in locales:
                 if self.verbosity > 0:
-                    self.stdout.write("processing locale %s\n" % locale)
+                    self.stdout.write('processing locale %s' % locale)
                 for potfile in potfiles:
                     self.write_po_file(potfile, locale)
         finally:
@@ -462,7 +462,7 @@ class Command(BaseCommand):
                         os.path.join(os.path.abspath(dirpath), dirname) in ignored_roots):
                     dirnames.remove(dirname)
                     if self.verbosity > 1:
-                        self.stdout.write('ignoring directory %s\n' % dirname)
+                        self.stdout.write('ignoring directory %s' % dirname)
                 elif dirname == 'locale':
                     dirnames.remove(dirname)
                     self.locale_paths.insert(0, os.path.join(os.path.abspath(dirpath), dirname))
@@ -471,7 +471,7 @@ class Command(BaseCommand):
                 file_ext = os.path.splitext(filename)[1]
                 if file_ext not in self.extensions or is_ignored_path(file_path, self.ignore_patterns):
                     if self.verbosity > 1:
-                        self.stdout.write('ignoring file %s in %s\n' % (filename, dirpath))
+                        self.stdout.write('ignoring file %s in %s' % (filename, dirpath))
                 else:
                     locale_dir = None
                     for path in self.locale_paths:
@@ -504,7 +504,7 @@ class Command(BaseCommand):
         build_files = []
         for translatable in files:
             if self.verbosity > 1:
-                self.stdout.write('processing file %s in %s\n' % (
+                self.stdout.write('processing file %s in %s' % (
                     translatable.file, translatable.dirpath
                 ))
             if self.domain not in ('djangojs', 'django'):
@@ -649,7 +649,7 @@ class Command(BaseCommand):
                 if m:
                     plural_form_line = m.group('value')
                     if self.verbosity > 1:
-                        self.stdout.write("copying plural forms: %s\n" % plural_form_line)
+                        self.stdout.write('copying plural forms: %s' % plural_form_line)
                     lines = []
                     found = False
                     for line in msgs.splitlines():
diff --git a/django/core/management/commands/makemigrations.py b/django/core/management/commands/makemigrations.py
index b9d43d097d..7cee2c120e 100644
--- a/django/core/management/commands/makemigrations.py
+++ b/django/core/management/commands/makemigrations.py
@@ -190,7 +190,7 @@ class Command(BaseCommand):
         directory_created = {}
         for app_label, app_migrations in changes.items():
             if self.verbosity >= 1:
-                self.stdout.write(self.style.MIGRATE_HEADING("Migrations for '%s':" % app_label) + "\n")
+                self.stdout.write(self.style.MIGRATE_HEADING("Migrations for '%s':" % app_label))
             for migration in app_migrations:
                 # Describe the migration
                 writer = MigrationWriter(migration, self.include_header)
@@ -203,9 +203,9 @@ class Command(BaseCommand):
                         migration_string = writer.path
                     if migration_string.startswith('..'):
                         migration_string = writer.path
-                    self.stdout.write("  %s\n" % self.style.MIGRATE_LABEL(migration_string))
+                    self.stdout.write('  %s\n' % self.style.MIGRATE_LABEL(migration_string))
                     for operation in migration.operations:
-                        self.stdout.write("    - %s\n" % operation.describe())
+                        self.stdout.write('    - %s' % operation.describe())
                 if not self.dry_run:
                     # Write the migrations file to the disk.
                     migrations_directory = os.path.dirname(writer.path)
@@ -224,9 +224,9 @@ class Command(BaseCommand):
                     # will output the migrations to stdout rather than saving
                     # the file to the disk.
                     self.stdout.write(self.style.MIGRATE_HEADING(
-                        "Full migrations file '%s':" % writer.filename) + "\n"
-                    )
-                    self.stdout.write("%s\n" % writer.as_string())
+                        "Full migrations file '%s':" % writer.filename
+                    ))
+                    self.stdout.write(writer.as_string())
 
     def handle_merge(self, loader, conflicts):
         """
@@ -272,7 +272,7 @@ class Command(BaseCommand):
                 for migration in merge_migrations:
                     self.stdout.write(self.style.MIGRATE_LABEL("  Branch %s" % migration.name))
                     for operation in migration.merged_operations:
-                        self.stdout.write("    - %s\n" % operation.describe())
+                        self.stdout.write('    - %s' % operation.describe())
             if questioner.ask_merge(app_label):
                 # If they still want to merge it, then write out an empty
                 # file depending on the migrations needing merging.
@@ -305,6 +305,6 @@ class Command(BaseCommand):
                     # will output the merge migrations to stdout rather than saving
                     # the file to the disk.
                     self.stdout.write(self.style.MIGRATE_HEADING(
-                        "Full merge migrations file '%s':" % writer.filename) + "\n"
-                    )
-                    self.stdout.write("%s\n" % writer.as_string())
+                        "Full merge migrations file '%s':" % writer.filename
+                    ))
+                    self.stdout.write(writer.as_string())
diff --git a/django/core/management/commands/migrate.py b/django/core/management/commands/migrate.py
index 315a734d07..79c6f8e1ea 100644
--- a/django/core/management/commands/migrate.py
+++ b/django/core/management/commands/migrate.py
@@ -331,7 +331,7 @@ class Command(BaseCommand):
 
         # Create the tables for each model
         if self.verbosity >= 1:
-            self.stdout.write("  Creating tables...\n")
+            self.stdout.write('  Creating tables...')
         with connection.schema_editor() as editor:
             for app_name, model_list in manifest.items():
                 for model in model_list:
@@ -340,15 +340,15 @@ class Command(BaseCommand):
                         continue
                     if self.verbosity >= 3:
                         self.stdout.write(
-                            "    Processing %s.%s model\n" % (app_name, model._meta.object_name)
+                            '    Processing %s.%s model' % (app_name, model._meta.object_name)
                         )
                     if self.verbosity >= 1:
-                        self.stdout.write("    Creating table %s\n" % model._meta.db_table)
+                        self.stdout.write('    Creating table %s' % model._meta.db_table)
                     editor.create_model(model)
 
             # Deferred SQL is executed when exiting the editor's context.
             if self.verbosity >= 1:
-                self.stdout.write("    Running deferred SQL...\n")
+                self.stdout.write('    Running deferred SQL...')
 
     @staticmethod
     def describe_operation(operation, backwards):
diff --git a/django/core/management/commands/runserver.py b/django/core/management/commands/runserver.py
index c2a8c325f1..10dd314b27 100644
--- a/django/core/management/commands/runserver.py
+++ b/django/core/management/commands/runserver.py
@@ -124,7 +124,7 @@ class Command(BaseCommand):
         self.stdout.write((
             "Django version %(version)s, using settings %(settings)r\n"
             "Starting development server at %(protocol)s://%(addr)s:%(port)s/\n"
-            "Quit the server with %(quit_command)s.\n"
+            "Quit the server with %(quit_command)s."
         ) % {
             "version": self.get_version(),
             "settings": settings.SETTINGS_MODULE,
diff --git a/django/core/management/templates.py b/django/core/management/templates.py
index 07b12bd6e1..2c203444a5 100644
--- a/django/core/management/templates.py
+++ b/django/core/management/templates.py
@@ -85,13 +85,14 @@ class TemplateCommand(BaseCommand):
         for file in options['files']:
             extra_files.extend(map(lambda x: x.strip(), file.split(',')))
         if self.verbosity >= 2:
-            self.stdout.write("Rendering %s template files with "
-                              "extensions: %s\n" %
-                              (app_or_project, ', '.join(extensions)))
-            self.stdout.write("Rendering %s template files with "
-                              "filenames: %s\n" %
-                              (app_or_project, ', '.join(extra_files)))
-
+            self.stdout.write(
+                'Rendering %s template files with extensions: %s'
+                % (app_or_project, ', '.join(extensions))
+            )
+            self.stdout.write(
+                'Rendering %s template files with filenames: %s'
+                % (app_or_project, ', '.join(extra_files))
+            )
         base_name = '%s_name' % app_or_project
         base_subdir = '%s_template' % app_or_project
         base_directory = '%s_directory' % app_or_project
@@ -162,7 +163,7 @@ class TemplateCommand(BaseCommand):
                     shutil.copyfile(old_path, new_path)
 
                 if self.verbosity >= 2:
-                    self.stdout.write("Creating %s\n" % new_path)
+                    self.stdout.write('Creating %s' % new_path)
                 try:
                     shutil.copymode(old_path, new_path)
                     self.make_writeable(new_path)
@@ -174,7 +175,7 @@ class TemplateCommand(BaseCommand):
 
         if self.paths_to_remove:
             if self.verbosity >= 2:
-                self.stdout.write("Cleaning up temporary files.\n")
+                self.stdout.write('Cleaning up temporary files.')
             for path_to_remove in self.paths_to_remove:
                 if os.path.isfile(path_to_remove):
                     os.remove(path_to_remove)
@@ -259,7 +260,7 @@ class TemplateCommand(BaseCommand):
         filename, display_url = cleanup_url(url)
 
         if self.verbosity >= 2:
-            self.stdout.write("Downloading %s\n" % display_url)
+            self.stdout.write('Downloading %s' % display_url)
         try:
             the_path, info = urlretrieve(url, os.path.join(tempdir, filename))
         except OSError as e:
@@ -313,7 +314,7 @@ class TemplateCommand(BaseCommand):
         tempdir = tempfile.mkdtemp(prefix=prefix, suffix='_extract')
         self.paths_to_remove.append(tempdir)
         if self.verbosity >= 2:
-            self.stdout.write("Extracting %s\n" % filename)
+            self.stdout.write('Extracting %s' % filename)
         try:
             archive.extract(filename, tempdir)
             return tempdir