Fix LGTM warnings (#17)

Co-authored-by: Guy Korland <gkorland@gmail.com>

Author: Meir Shpilraien (Spielrein)

example.py

@@ -1,22 +1,9 @@
 from gearsclient import GearsRemoteBuilder as GRB
-from gearsclient import log, hashtag, execute, atomic
+from gearsclient import execute, atomic
 import redis
 
 conn = redis.Redis(host='localhost', port=6379)
 
-# count for each genre how many times it appears
-
-# class test:
-#     def __init__(self):
-#         self.count = 1
-
-# def func1(x):
-#     return test()
-
-# def func2(x):
-#     x.count += 1
-#     return x
-
 def func(x):
     with atomic():
         execute('hset', 'h', 'foo', 'bar')
@@ -28,8 +15,3 @@ def func(x):
       run()
 
 print(res)
-# if len(res[1]) > 0:
-#     print(res[1])
-
-# for r in res[0]:
-#     print('%s' % str(r.count))

gearsclient/redisgears_builder.py

@@ -1,6 +1,5 @@
 import redis
 import cloudpickle
-import pickle
 
 class GearsRemoteLocalGroupByStep():
     def __init__(self, extractor, reducer):
@@ -332,7 +331,6 @@ class atomic:
     def __init__(self):
         from redisgears import atomicCtx as redisAtomic
         self.atomic = redisAtomic()
-        pass
 
     def __enter__(self):
         self.atomic.__enter__()

requirements.txt

@@ -1,2 +1,2 @@
 redis
-cloudpickle
+cloudpickle