Respect age_limit when listing extractors (Fixes #4653)

1 files changed, 13 insertions, 0 deletions

diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
index b523e9644..0145e350d 100644
--- a/youtube_dl/extractor/__init__.py
+++ b/youtube_dl/extractor/__init__.py
@@ -560,6 +560,8 @@ from .zingmp3 import (
     ZingMp3AlbumIE,
 )
 
+from ..utils import age_restricted
+
 _ALL_CLASSES = [
     klass
     for name, klass in globals().items()
@@ -575,6 +577,17 @@ def gen_extractors():
     return [klass() for klass in _ALL_CLASSES]
 
 
+def list_extractors(age_limit):
+    """
+    Return a list of extractors that are suitable for the given age,
+    sorted by extractor ID.
+    """
+
+    return sorted(
+        filter(lambda ie: ie.is_suitable(age_limit), gen_extractors()),
+        key=lambda ie: ie.IE_NAME.lower())
+
+
 def get_info_extractor(ie_name):
     """Returns the info extractor class with the given ie_name"""
     return globals()[ie_name + 'IE']