diff --git a/src/worker/common/log_utils.py b/src/worker/common/log_utils.py
index 919dda2..42374e8 100644
--- a/src/worker/common/log_utils.py
+++ b/src/worker/common/log_utils.py
@@ -1,6 +1,7 @@
 import logging
 from worker.common.config import Config
 
+
 def configure_logging():
     logging.basicConfig(
         level=__get_log_level(Config.LOG_LEVEL),
@@ -18,15 +19,17 @@ def log_with_job(message, job=None, log_level="info", **kwargs):
     else:
         log_function(message, **kwargs)
 
+
 def log_variable(variable, job=None, log_level="info", **kwargs):
     log_function = __get_log_function(log_level)
 
     message = f"[TASK_VARIABLE] name={variable.name} value='{variable.value}' type={variable.type}"
-    if job is not None:        
+    if job is not None:
         log_with_job(message=message, job=job)
     else:
         log_function(msg=message)
 
+
 def log_with_context(message, context=None, log_level="info", **kwargs):
     context = context if context is not None else {}
     log_function = __get_log_function(log_level)
@@ -46,9 +49,11 @@ def __get_log_context_prefix(context):
                 log_context_prefix += f"[{k}:{v}]"
     return log_context_prefix
 
+
 def __get_log_level(log_level: str):
     switcher = {"info": logging.INFO, "debug": logging.DEBUG, "warning": logging.WARNING, "error": logging.ERROR}
-    return switcher.get(log_level.lower(), logging.INFO)  
+    return switcher.get(log_level.lower(), logging.INFO)
+
 
 def __get_log_function(log_level: str):
     switcher = {"info": logging.info, "debug": logging.debug, "warning": logging.warning, "error": logging.error}
diff --git a/src/worker/sentinel/tasks.py b/src/worker/sentinel/tasks.py
index 90ee7c6..3cc5abd 100644
--- a/src/worker/sentinel/tasks.py
+++ b/src/worker/sentinel/tasks.py
@@ -1,4 +1,3 @@
-import json
 from worker.common.log_utils import configure_logging, log_with_job, log_variable
 
 configure_logging()
@@ -9,18 +8,10 @@ def sentinel_discover_data(job, worker_result_builder):
 
     # discovering scenes
     scenes = []
-    scene1 = {
-        "scene": {
-            "name": "scene1"
-        }        
-    }
-    scene2 = {
-        "scene": {
-            "name": "scene2"
-        }  
-    }    
+    scene1 = {"scene": {"name": "scene1"}}
+    # scene2 = {"scene": {"name": "scene2"}}
     scenes.append(scene1)
-    #scenes.append(scene2)
+    # scenes.append(scene2)
 
     # build result
     result = worker_result_builder.success()
@@ -31,28 +22,31 @@ def sentinel_discover_data(job, worker_result_builder):
 
     return result
 
+
 def sentinel_order_data(job, worker_result_builder):
     log_with_job(message="Ordering data ...", job=job)
     result = worker_result_builder.success()
     return result
 
+
 def sentinel_download_data(job, worker_result_builder):
     log_with_job(message="Downloading data ...", job=job)
 
     # get job variables
     for v in job.variables:
         log_variable(variable=v, job=job, log_level="info")
-        
+
     result = worker_result_builder.success()
     return result
 
+
 def sentinel_unzip(job, worker_result_builder):
     log_with_job(message="Unzipping ...", job=job)
 
     # get job variables
     for v in job.variables:
         log_variable(variable=v, job=job, log_level="info")
-        
+
     result = worker_result_builder.success()
     return result
 
@@ -70,12 +64,12 @@ def sentinel_check_integrity(job, worker_result_builder):
 
     scene = job_vars["scene"]
     log_with_job(f"Input variable: scene={scene}")
-    
-    scene['collection'] = "sentinel-1"
-    #scene['collection'] = ""
+
+    scene["collection"] = "sentinel-1"
+    # scene['collection'] = ""
     log_with_job(f"Output variable: scene={scene}")
     result = worker_result_builder.success()
-    result.variable_string(name="collection", value=scene['collection'])
+    result.variable_string(name="collection", value=scene["collection"])
 
     return result
 
@@ -86,7 +80,7 @@ def sentinel_extract_metadata(job, worker_result_builder):
     # get job variables
     for v in job.variables:
         log_variable(variable=v, job=job, log_level="info")
-        
+
     result = worker_result_builder.success()
     return result
 
@@ -97,17 +91,18 @@ def sentinel_register_metadata(job, worker_result_builder):
     # get job variables
     for v in job.variables:
         log_variable(variable=v, job=job, log_level="info")
-        
+
     result = worker_result_builder.success()
     return result
 
+
 def sentinel_inventory_update(job, worker_result_builder):
     log_with_job(message="Updating inventory ...", job=job)
 
     # get job variables
     for v in job.variables:
         log_variable(variable=v, job=job, log_level="info")
-        
+
     result = worker_result_builder.success()
     return result