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-rw-r--r--youtube_dl/__init__.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
index 94788d936..9d4859bcf 100644
--- a/youtube_dl/__init__.py
+++ b/youtube_dl/__init__.py
@@ -166,6 +166,8 @@ def _real_main(argv=None):
if opts.max_sleep_interval is not None:
if opts.max_sleep_interval < 0:
parser.error('max sleep interval must be positive or 0')
+ if opts.sleep_interval is None:
+ parser.error('min sleep interval must be specified, use --min-sleep-interval')
if opts.max_sleep_interval < opts.sleep_interval:
parser.error('max sleep interval must be greater than or equal to min sleep interval')
else: