[core] No longer importing copy

diff --git a/youtube_dl/YoutubeDL.py b/youtube_dl/YoutubeDL.py
index 927b19417f87c9392ef4ab573ce41228324ce309..2a1e59bf89ef1a6b05b549a45c172283d253de4a 100755 (executable)
--- a/youtube_dl/YoutubeDL.py
+++ b/youtube_dl/YoutubeDL.py
@@ -5,7 +5,6 @@ from __future__ import absolute_import, unicode_literals
 
 import collections
 import contextlib
-import copy
 import datetime
 import errno
 import fileinput