fixed indentation
diff --git a/test/cpp/qps/json_run_localhost_scenario_gen.py b/test/cpp/qps/json_run_localhost_scenario_gen.py
index 3cd2b79..01f6a69 100755
--- a/test/cpp/qps/json_run_localhost_scenario_gen.py
+++ b/test/cpp/qps/json_run_localhost_scenario_gen.py
@@ -18,21 +18,21 @@
 import json
 
 def generate_args():
-  all_scenario_set = gen.generate_yaml()
-  all_scenario_set = all_scenario_set['tests']
-  json_run_localhost_scenarios = \
-    [item for item in all_scenario_set if item['name'] == 'qps_json_driver']
-  json_run_localhost_arg_set = \
-    [item['args'][2] for item in json_run_localhost_scenarios \
-     if 'args' in item and len(item['args']) > 2]
-  deserialized_scenarios = [json.loads(item)['scenarios'][0] \
-                            for item in json_run_localhost_arg_set]
-  all_scenarios = {scenario['name'].encode('ascii', 'ignore'): \
-                  '\'{\'scenarios\' : [' + json.dumps(scenario) + ']}\'' \
-                  for scenario in deserialized_scenarios}
+    all_scenario_set = gen.generate_yaml()
+    all_scenario_set = all_scenario_set['tests']
+    json_run_localhost_scenarios = \
+        [item for item in all_scenario_set if item['name'] == 'qps_json_driver']
+    json_run_localhost_arg_set = \
+        [item['args'][2] for item in json_run_localhost_scenarios \
+        if 'args' in item and len(item['args']) > 2]
+    deserialized_scenarios = [json.loads(item)['scenarios'][0] \
+                              for item in json_run_localhost_arg_set]
+    all_scenarios = {scenario['name'].encode('ascii', 'ignore'): \
+                    '\'{\'scenarios\' : [' + json.dumps(scenario) + ']}\'' \
+                    for scenario in deserialized_scenarios}
 
-  serialized_scenarios_str = str(all_scenarios).encode('ascii', 'ignore')
-  with open('json_run_localhost_scenarios.bzl', 'wb') as f:
-    f.write('JSON_RUN_LOCALHOST_SCENARIOS = ' + serialized_scenarios_str + '\n')
+    serialized_scenarios_str = str(all_scenarios).encode('ascii', 'ignore')
+    with open('json_run_localhost_scenarios.bzl', 'wb') as f:
+        f.write('JSON_RUN_LOCALHOST_SCENARIOS = ' + serialized_scenarios_str + '\n')
 
 generate_args()
diff --git a/test/cpp/qps/qps_json_driver_scenario_gen.py b/test/cpp/qps/qps_json_driver_scenario_gen.py
index 28fbb89..393f968 100755
--- a/test/cpp/qps/qps_json_driver_scenario_gen.py
+++ b/test/cpp/qps/qps_json_driver_scenario_gen.py
@@ -18,21 +18,21 @@
 import json
 
 def generate_args():
-  all_scenario_set = gen.generate_yaml()
-  all_scenario_set = all_scenario_set['tests']
-  qps_json_driver_scenario_set = \
-    [item for item in all_scenario_set if item['name'] == 'qps_json_driver']
-  qps_json_driver_arg_set = \
-    [item['args'][2] for item in qps_json_driver_scenario_set \
-     if 'args' in item and len(item['args']) > 2]
-  deserialized_scenarios = [json.loads(item)['scenarios'][0] \
+    all_scenario_set = gen.generate_yaml()
+    all_scenario_set = all_scenario_set['tests']
+    qps_json_driver_scenario_set = \
+        [item for item in all_scenario_set if item['name'] == 'qps_json_driver']
+    qps_json_driver_arg_set = \
+        [item['args'][2] for item in qps_json_driver_scenario_set \
+        if 'args' in item and len(item['args']) > 2]
+    deserialized_scenarios = [json.loads(item)['scenarios'][0] \
                             for item in qps_json_driver_arg_set]
-  all_scenarios = {scenario['name'].encode('ascii', 'ignore'): \
+    all_scenarios = {scenario['name'].encode('ascii', 'ignore'): \
                    '\'{\'scenarios\' : [' + json.dumps(scenario) + ']}\'' \
                    for scenario in deserialized_scenarios}
 
-  serialized_scenarios_str = str(all_scenarios).encode('ascii', 'ignore')
-  with open('qps_json_driver_scenarios.bzl', 'w') as f:
-    f.write('QPS_JSON_DRIVER_SCENARIOS = ' + serialized_scenarios_str + '\n')
+    serialized_scenarios_str = str(all_scenarios).encode('ascii', 'ignore')
+    with open('qps_json_driver_scenarios.bzl', 'w') as f:
+        f.write('QPS_JSON_DRIVER_SCENARIOS = ' + serialized_scenarios_str + '\n')
 
 generate_args()
diff --git a/tools/run_tests/sanity/check_qps_scenario_changes.py b/tools/run_tests/sanity/check_qps_scenario_changes.py
index 2c34251..35f997a 100755
--- a/tools/run_tests/sanity/check_qps_scenario_changes.py
+++ b/tools/run_tests/sanity/check_qps_scenario_changes.py
@@ -27,7 +27,7 @@
 json_run_localhost_bzl = 'test/cpp/qps/json_run_localhost_scenarios.bzl'
 
 if qps_json_driver_bzl in output or json_run_localhost_bzl in output:
-  print('qps benchmark scenarios have been updated, please commit '
+    print('qps benchmark scenarios have been updated, please commit '
         'test/cpp/qps/qps_json_driver_scenarios.bzl and/or '
         'test/cpp/qps/json_run_localhost_scenarios.bzl')
-  sys.exit(1)
+    sys.exit(1)