Fix a few issues reported by Flake8

Also:

 * Imports in service_keywords.py were reordered.

 * A comment in op_faker.py was slightly changed.

@@ -47,7 +47,7 @@ def create_fake_doc():
 
 
 def test_tender_data(intervals, periods=("enquiry", "tender")):
 def test_tender_data(intervals, periods=("enquiry", "tender")):
     now = get_now()
     now = get_now()
-    value_amount = round(random.uniform(3000, 250000000000), 2) #max value equals to budget of Ukraine in hryvnias
+    value_amount = round(random.uniform(3000, 250000000000), 2)  # max value equals to budget of Ukraine in hryvnias
     data = {
     data = {
         "mode": "test",
         "mode": "test",
         "submissionMethodDetails": "quick",
         "submissionMethodDetails": "quick",
@@ -211,7 +211,7 @@ def test_question_answer_data():
 
 
 def test_complaint_data(lot=False):
 def test_complaint_data(lot=False):
     data = munchify({
     data = munchify({
-        "data" : {
+        "data": {
             "author": fake.procuringEntity(),
             "author": fake.procuringEntity(),
             "description": fake.description(),
             "description": fake.description(),
             "title": fake.title()
             "title": fake.title()
@@ -339,14 +339,15 @@ def test_bid_params():
         ]
         ]
     })
     })
 
 
+
 def test_bid_value(max_value_amount):
 def test_bid_value(max_value_amount):
     return munchify({
     return munchify({
-                "value": {
-                    "currency": "UAH",
-                    "amount": round(random.uniform(1, max_value_amount), 2),
-                    "valueAddedTaxIncluded": True
-                }
-            })
+        "value": {
+            "currency": "UAH",
+            "amount": round(random.uniform(1, max_value_amount), 2),
+            "valueAddedTaxIncluded": True
+        }
+    })
 
 
 
 
 def test_supplier_data():
 def test_supplier_data():

@@ -108,8 +108,8 @@ class OP_Provider(BaseProvider):
         Generate a random item for openprocurement tenders
         Generate a random item for openprocurement tenders
 
 
         :param cpv_group: gives possibility to generate items
         :param cpv_group: gives possibility to generate items
-            from one cpv group. Cpv group is three digits in the beginning
-            of each cpv id.
+            from a specific cpv group. Cpv group is three digits
+            in the beginning of each cpv id.
         """
         """
         if cpv_group is None:
         if cpv_group is None:
             item_base_data = self.random_element(self.items_base_data)
             item_base_data = self.random_element(self.items_base_data)

 # -*- coding: utf-8 -
 # -*- coding: utf-8 -
+from .local_time import get_now, TZ
 from copy import deepcopy
 from copy import deepcopy
 from datetime import timedelta
 from datetime import timedelta
 from dateutil.parser import parse
 from dateutil.parser import parse
 from dpath.util import new as xpathnew
 from dpath.util import new as xpathnew
+from haversine import haversine
 from iso8601 import parse_date
 from iso8601 import parse_date
 from json import load
 from json import load
 from jsonpath_rw import parse as parse_path
 from jsonpath_rw import parse as parse_path
 from munch import fromYAML, Munch, munchify
 from munch import fromYAML, Munch, munchify
-from restkit import request
 from robot.errors import ExecutionFailed
 from robot.errors import ExecutionFailed
 from robot.libraries.BuiltIn import BuiltIn
 from robot.libraries.BuiltIn import BuiltIn
 from robot.output import LOGGER
 from robot.output import LOGGER
 from robot.output.loggerhelper import Message
 from robot.output.loggerhelper import Message
-from haversine import haversine
-from math import radians, cos, sin, asin, sqrt
 # These imports are not pointless. Robot's resource and testsuite files
 # These imports are not pointless. Robot's resource and testsuite files
 # can access them by simply importing library "service_keywords".
 # can access them by simply importing library "service_keywords".
 # Please ignore the warning given by Flake8 or other linter.
 # Please ignore the warning given by Flake8 or other linter.
@@ -48,9 +47,10 @@ from .initial_data import (
     test_tender_data_openeu,
     test_tender_data_openeu,
     test_tender_data_openua
     test_tender_data_openua
 )
 )
-from .local_time import get_now, TZ
-import os
 from barbecue import chef
 from barbecue import chef
+from restkit import request
+# End of non-pointless imports
+import os
 import re
 import re
 
 
 NUM_TYPES = (int, long, float)
 NUM_TYPES = (int, long, float)
@@ -422,6 +422,7 @@ def get_object_index_by_id(data, object_id):
         index += 1
         index += 1
     return index
     return index
 
 
+
 # GUI Frontends common
 # GUI Frontends common
 def add_data_for_gui_frontends(tender_data):
 def add_data_for_gui_frontends(tender_data):
     now = get_now()
     now = get_now()