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-rw-r--r--youtube_dl/extractor/pluralsight.py15
1 files changed, 12 insertions, 3 deletions
diff --git a/youtube_dl/extractor/pluralsight.py b/youtube_dl/extractor/pluralsight.py
index d542a9e0e..8481a10b0 100644
--- a/youtube_dl/extractor/pluralsight.py
+++ b/youtube_dl/extractor/pluralsight.py
@@ -1,6 +1,7 @@
from __future__ import unicode_literals
import json
+import random
from .common import InfoExtractor
from ..compat import (
@@ -156,9 +157,17 @@ class PluralsightIE(PluralsightBaseIE):
format_id = '%s-%s' % (ext, quality)
clip_url = self._download_webpage(
request, display_id, 'Downloading %s URL' % format_id, fatal=False)
- # #6989: sleep 3 seconds to avoid 429 errors.
- # should help with #6842.
- self._sleep(3, display_id)
+
+ # Pluralsight tracks multiple sequential calls to ViewClip API and start
+ # to return 429 HTTP errors after some time (see
+ # https://github.com/rg3/youtube-dl/pull/6989). Moreover it may even lead
+ # to account ban (see https://github.com/rg3/youtube-dl/issues/6842).
+ # To somewhat reduce the probability of these consequences
+ # we will sleep random amount of time before each call to ViewClip.
+ self._sleep(
+ random.randint(2, 5), display_id,
+ '%(video_id)s: Waiting for %(timeout)s seconds to avoid throttling')
+
if not clip_url:
continue
f.update({