Resolve "Don't set the matplotlib backend"

Closes #494 (closed)

bilby/core/utils.py

@@ -5,7 +5,6 @@ import logging
 import os
 from math import fmod
 import argparse
-import traceback
 import inspect
 import functools
 import types
@@ -15,7 +14,6 @@ from importlib import import_module
 import json
 import warnings
 
-from distutils.version import StrictVersion
 import numpy as np
 from scipy.interpolate import interp2d
 from scipy.special import logsumexp
@@ -971,6 +969,7 @@ command_line_args, command_line_parser = set_up_command_line_arguments()
 #  Instantiate the default logging
 setup_logger(print_version=False, log_level=command_line_args.log_level)
 
+
 class BilbyJsonEncoder(json.JSONEncoder):
 
     def default(self, obj):