removed unnecessary import

anime_downloader/commands/dl.py

@@ -8,7 +8,6 @@ import re
 from anime_downloader import session, util
 from anime_downloader.__version__ import __version__
 from anime_downloader.sites import get_anime_class, ALL_ANIME_SITES, exceptions
-from click import UsageError
 
 logger = logging.getLogger(__name__)
 
@@ -98,7 +97,7 @@ def command(ctx, anime_url, episode_range, url, player, skip_download, quality,
         regexed_range = re.compile("^:?(\d+)?:?(\d+)?$").search(episode_range)
         # Prevent such cases as: :5: and :1:1
         if not regexed_range or (len(regexed_range.groups()) >= episode_range.count(":") and episode_range.count(":") != 1):
-            raise UsageError(
+            raise click.UsageError(
                 "Invalid value for '--episode' / '-e': {} is not a valid range".format(episode_range))
 
     if sub and dub: