[#30] preset: PEP 8 refactor

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>

scenarios/preset/preset_grpc.py

@@ -54,14 +54,14 @@ def main():
     for container in container_list:
         print(f" > Upload objects for container {container}")
         with ProcessPoolExecutor(max_workers=50) as executor:
-            objects_runs = {executor.submit(upload_object, container, payload_filepath): _ for _ in range(int(args.preload_obj))}
+            objects_runs = {executor.submit(upload_object, container, payload_filepath): _ for _ in
+                            range(int(args.preload_obj))}
 
         for run in objects_runs:
             if run.result() is not None:
                 objects_struct.append({'container': container, 'object': run.result()})
         print(f" > Upload objects for container {container}: Completed")
 
-
     print("Upload objects to each container: Completed")
 
     data = {'containers': container_list, 'objects': objects_struct, 'obj_size': args.size + " Kb"}
@@ -104,6 +104,7 @@ def create_container():
             fst_str = output.split('\n')[0]
         except Exception:
             print(f"Got empty output: {output}")
+            return
         splitted = fst_str.split(": ")
         if len(splitted) != 2:
             raise ValueError(f"no CID was parsed from command output: \t{fst_str}")
@@ -123,6 +124,7 @@ def upload_object(container, payload_filepath):
             snd_str = out.split('\n')[1]
         except:
             print(f"Got empty input: {out}")
+            return
         splitted = snd_str.split(": ")
         if len(splitted) != 2:
             raise Exception(f"no OID was parsed from command output: \t{snd_str}")

scenarios/preset/preset_s3.py

@@ -1,14 +1,12 @@
 #!/usr/bin/python3
 
-from multiprocessing import Process
-import uuid
-import shlex
-from subprocess import check_output, CalledProcessError, STDOUT
+import argparse
 import json
 import os
-import argparse, sys
-
+import shlex
+import uuid
 from concurrent.futures import ProcessPoolExecutor
+from subprocess import check_output, CalledProcessError, STDOUT
 
 parser = argparse.ArgumentParser()
 
@@ -30,7 +28,6 @@ def main():
     objects_struct = []
     payload_filepath = '/tmp/data_file'
 
-
     if args.update:
         # Open file
         with open(args.out) as f:
@@ -65,7 +62,6 @@ def main():
                 objects_struct.append({'bucket': bucket, 'object': run.result()})
         print(f" > Upload objects for bucket {bucket}: Completed")
 
-
     print("Upload objects to each bucket: Completed")
 
     data = {'buckets': bucket_list, 'objects': objects_struct, 'obj_size': args.size + " Kb"}
@@ -82,6 +78,7 @@ def random_payload(payload_filepath):
     with open('%s' % payload_filepath, 'wb') as fout:
         fout.write(os.urandom(1024 * int(args.size)))
 
+
 def execute_cmd(cmd_line):
     args = shlex.split(cmd_line)
     output = ""
@@ -118,7 +115,7 @@ def create_bucket():
         bucket_create_marker = True
         print(f"cmd: {cmd_line}")
 
-    if (bucket_create_marker == True and args.versioning == "True"):
+    if bucket_create_marker and args.versioning == "True":
         out, success = execute_cmd(cmd_line_ver)
         if not success:
             print(f" > Bucket versioning has not been applied for bucket {bucket_name}.")
@@ -142,5 +139,3 @@ def upload_object(bucket, payload_filepath):
 
 if __name__ == "__main__":
     main()
-
-