Fix output of --youtube-print-sig-code when counting down to 0

11 years ago · e35e4ddc9a
parent c3c88a2664
commit e35e4ddc9a
1 changed files with 2 additions and 2 deletions
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@ -488,8 +488,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
        def gen_sig_code(idxs):
            def _genslice(start, end, step):
                starts = u'' if start == 0 else str(start)
-                ends = u':%d' % (end+step)
-                steps = u'' if step == 1 else (':%d' % step)
+                ends = (u':%d' % (end+step)) if end + step >= 0 else u':'
+                steps = u'' if step == 1 else (u':%d' % step)
                return u's[%s%s%s]' % (starts, ends, steps)

            step = None