Merge branch 'pylint-fix' into 'develop'

Fixes pylint errors

See merge request discus/pydtn!15

pydtn/__init__.py

@@ -439,7 +439,6 @@ class Node:
     def send_failure(self, packet, target):
         """Call when a send fails."""
         # pylint: disable=unused-argument
-        pass
 
     def packet_expiry(self, packet):
         """Call when a packet expires."""
@@ -540,7 +539,6 @@ class FloodingNode(Node):
 
         Do nothing, overrides default of removing from buffer.
         """
-        pass
 
 
 Contact = namedtuple('Contact', ['time', 'a', 'b', 'join'])
@@ -611,7 +609,7 @@ class CSVTrace(Trace):
         with open(self.path) as csv_file:
             csv_file = csv.reader(csv_file)
             # skip header
-            next(csv_file)
+            next(csv_file)  # pylint: disable=stop-iteration-return
             for row in csv_file:
                 yield self.create_contact(*map(int, row))
 

pydtn/community.py

@@ -406,14 +406,10 @@ class BubbleNode(CommunityNode):
 class BubbleKCliqueNode(KCliqueNode, BubbleNode):
     """Bubble node with k-clique community detection."""
 
-    pass
-
 
 class BubbleLouvainNode(LouvainNode, BubbleNode):
     """Bubble node with louvain community detection."""
 
-    pass
-
 
 class HCBFNode(CommunityNode):
     """Node with Hybrid Community Based forwarding."""
@@ -463,10 +459,6 @@ class HCBFNode(CommunityNode):
 class HCBFKCliqueNode(KCliqueNode, HCBFNode):
     """HCBF node with k-clique community detection."""
 
-    pass
-
 
 class HCBFLouvainNode(LouvainNode, HCBFNode):
     """HCBF node with louvain community detection."""
-
-    pass