Maintain PEP8 compliance

Also:
Add 2 blank lines between all keywords in keywords.robot

@@ -431,7 +431,6 @@ def test_change_cancellation_document_field_data(key, value):
     })
 
 
-
 def test_confirm_data(ID):
     return munchify({
         "data": {
@@ -454,14 +453,14 @@ def test_additional_items_data(tender_id, access_token):
     return munchify({
         "access": {
             "token": access_token
-            },
+        },
         "data": {
             "id": tender_id,
-             "items": [{
+            "items": [{
                 "unit": {
                     "code": "MON",
                     "name": "month"
-                    },
+                },
                 "quantity": 9
             }]
         }
@@ -740,6 +739,7 @@ def test_tender_data_openua(intervals):
         'accelerator={}'.format(accelerator)
     return t_data
 
+
 def test_tender_data_openeu(intervals):
     accelerator = intervals['accelerator']
     # Since `accelerator` field is not really a list containing timings

@@ -10,6 +10,7 @@ Documentation
 ...  This resource file contains keywords that are used directly by
 ...  test suites or by brokers' keyword libraries (also known as drivers).
 
+
 *** Keywords ***
 Test Suite Setup
   Set Suite Variable  ${WARN_RUN_AS}  ${False}
@@ -17,10 +18,12 @@ Test Suite Setup
   Set Selenium Timeout  10 s
   Завантажуємо дані про користувачів і майданчики
 
+
 Test Suite Teardown
   Close all browsers
   Run Keyword And Ignore Error  Створити артефакт
 
+
 Set Suite Variable With Default Value
   [Arguments]  ${suite_var}  ${def_value}
   ${tmp}=  Get Variable Value  ${${suite_var}}  ${def_value}
@@ -82,6 +85,7 @@ Get Broker Property By Username
   ${broker_name}=  Get Variable Value  ${USERS.users['${username}'].broker}
   Run Keyword And Return  Get Broker Property  ${broker_name}  ${property}
 
+
 Створити артефакт
   ${artifact}=  Create Dictionary
   ...      api_version=${api_version}
@@ -96,6 +100,7 @@ Get Broker Property By Username
   Log   ${artifact}
   log_object_data  ${artifact}  artifact  update=${True}
 
+
 Завантажити дані про тендер
   ${file_path}=  Get Variable Value  ${ARTIFACT_FILE}  artifact.yaml
   ${ARTIFACT}=  load_initial_data_from  ${file_path}
@@ -165,6 +170,7 @@ Get Broker Property By Username
   Set To Dictionary  ${USERS.users['${username}']}  cancellation_data  ${cancellation_data}
   [Return]  ${cancellation_data}
 
+
 Завантажуємо бібліотеку з реалізацією для майданчика ${keywords_file}
   ${bundled_st}=  Run Keyword And Return Status  Import Resource  ${CURDIR}${/}brokers${/}${keywords_file}.robot
   ${external_st}=  Run Keyword And Return Status  Import Resource  ${CURDIR}${/}..${/}..${/}src${/}robot_tests.broker.${keywords_file}${/}${keywords_file}.robot
@@ -387,6 +393,7 @@ Require Failure
   Log  ${username}
   Дочекатись дати  ${USERS.users['${username}'].tender_data.data.auctionPeriod.endDate}
 
+
 Дочекатись дати закінчення періоду подання скарг
   [Arguments]  ${username}
   log  ${username}

@@ -117,7 +117,7 @@ def log_object_data(data, file_name=None, format="yaml", update=False):
                     file_obj.truncate()
             except IOError as e:
                 LOGGER.log_message(Message(e, "INFO"))
-                LOGGER.log_message(Message("Nothing to update, "\
+                LOGGER.log_message(Message("Nothing to update, "
                                            "creating new file.", "INFO"))
         data_obj = munch_to_object(data, format)
         with open(file_path, "w") as file_obj:
@@ -125,12 +125,14 @@ def log_object_data(data, file_name=None, format="yaml", update=False):
     data_obj = munch_to_object(data, format)
     LOGGER.log_message(Message(data_obj.decode('utf-8'), "INFO"))
 
+
 def munch_from_object(data, format="yaml"):
     if format.lower() == 'json':
         return Munch.fromJSON(data)
     else:
         return Munch.fromYAML(data)
 
+
 def munch_to_object(data, format="yaml"):
     if format.lower() == 'json':
         return data.toJSON(indent=2)