diff --git a/youtube_dl/YoutubeDL.py b/youtube_dl/YoutubeDL.py
index 6ea865bd9b..6e5ae44d35 100644
--- a/youtube_dl/YoutubeDL.py
+++ b/youtube_dl/YoutubeDL.py
@@ -16,7 +16,31 @@ import traceback
 if os.name == 'nt':
     import ctypes
 
-from .utils import *
+from .utils import (
+    compat_http_client,
+    compat_print,
+    compat_str,
+    compat_urllib_error,
+    compat_urllib_request,
+    ContentTooShortError,
+    date_from_str,
+    DateRange,
+    determine_ext,
+    DownloadError,
+    encodeFilename,
+    ExtractorError,
+    locked_file,
+    MaxDownloadsReached,
+    PostProcessingError,
+    preferredencoding,
+    SameFileError,
+    sanitize_filename,
+    subtitles_filename,
+    takewhile_inclusive,
+    UnavailableVideoError,
+    write_json_file,
+    write_string,
+)
 from .extractor import get_info_extractor, gen_extractors
 from .FileDownloader import FileDownloader
 
@@ -267,7 +291,7 @@ class YoutubeDL(object):
         """Report file has already been fully downloaded."""
         try:
             self.to_screen(u'[download] %s has already been downloaded' % file_name)
-        except (UnicodeEncodeError) as err:
+        except UnicodeEncodeError:
             self.to_screen(u'[download] The file has already been downloaded')
 
     def increment_downloads(self):
diff --git a/youtube_dl/update.py b/youtube_dl/update.py
index 0689a48912..f41b4785ae 100644
--- a/youtube_dl/update.py
+++ b/youtube_dl/update.py
@@ -2,11 +2,15 @@ import io
 import json
 import traceback
 import hashlib
+import os
 import subprocess
 import sys
 from zipimport import zipimporter
 
-from .utils import *
+from .utils import (
+    compat_str,
+    compat_urllib_request,
+)
 from .version import __version__
 
 def rsa_verify(message, signature, key):