youtube-dl

commit: c8f6ab8c38f8397b06028cdea2839d6e25e2c809
parent e2f61598be49b75f16b501f7a4d24f4c8c230c49
Author: Sergey M․ <dstftw@gmail.com>
Date:   Mon, 17 Sep 2018 22:14:53 +0700

[udemy] Don't pollute default headers dict

Diffstat:
M
youtube_dl/extractor/udemy.py
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/youtube_dl/extractor/udemy.py b/youtube_dl/extractor/udemy.py
@@ -122,7 +122,9 @@ class UdemyIE(InfoExtractor):
             raise ExtractorError(error_str, expected=True)
 
     def _download_webpage_handle(self, *args, **kwargs):
-        kwargs.setdefault('headers', {})['User-Agent'] = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.1.1 Safari/603.2.4'
+        headers = kwargs.get('headers', {}).copy()
+        headers['User-Agent'] = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.1.1 Safari/603.2.4'
+        kwargs['headers'] = headers
         return super(UdemyIE, self)._download_webpage_handle(
             *args, **compat_kwargs(kwargs))