pep257 fixes

Signed-off-by: Christian Henkel <[email protected]>

bt_live/src/bt_live/__init__.py

@@ -1,3 +1 @@
-"""
-Visualize behavior tree in real-time.
-"""
+"""Visualize behavior tree in real-time."""

bt_live/src/bt_live/views.py

@@ -2,8 +2,6 @@
 import os
 import random
 
-from ament_index_python.packages import get_package_share_directory
-
 from bt_live.ros_node import SingletonBtLiveNode
 
 from django.http import HttpResponse

btlib/src/btlib/__init__.py

@@ -1,6 +1,4 @@
-"""
-Module to visualize behavior trees.
-"""
+"""Module to visualize behavior trees."""
 
 from typing import Dict, List, Optional
 

btlib/src/btlib/logs.py

@@ -54,7 +54,8 @@ def read_log_fbl(fname: str,
 
     :return: Tuple of
         `values_count`: How often a node was executed.
-        `values_success`: How often a node was successful (positive value) vs failed (negative value).
+        `values_success`: How often a node was successful (positive value) 
+        vs failed (negative value).
     """
     with open(fname, 'rb') as file_b:
         buf = bytearray(file_b.read())