Traceback (most recent call last):


 "C:\Users\91901\anaconda3\envs\tf_1\lib\site-packages\IPython\core\interactiveshell.py", line 3263, in run_ast_nodes

if (await self.run_code(code, result,
async_=asy)):


 "C:\Users\91901\anaconda3\envs\tf_1\lib\site-packages\IPython\core\interactiveshell.py", line 3360, in run_code

self.showtraceback(running_compiled_code=True)


 "C:\Users\91901\anaconda3\envs\tf_1\lib\site-packages\IPython\core\interactiveshell.py", line 2047, in showtraceback

value, tb, tb_offset=tb_offset)


 "C:\Users\91901\anaconda3\envs\tf_1\lib\site-packages\IPython\core\ultratb.py", line 1436, in structured_traceback

self, etype, value, tb, tb_offset, number_of_lines_of_context)


 "C:\Users\91901\anaconda3\envs\tf_1\lib\site-packages\IPython\core\ultratb.py", line 1336, in structured_traceback

self, etype, value, tb, tb_offset, number_of_lines_of_context


 "C:\Users\91901\anaconda3\envs\tf_1\lib\site-packages\IPython\core\ultratb.py", line 1193, in structured_traceback

tb_offset)


 "C:\Users\91901\anaconda3\envs\tf_1\lib\site-packages\IPython\core\ultratb.py", line 1150, in format_exception_as_a_whole

last_unique, recursion_repeat = find_recursion(orig_etype, evalue, records)


 "C:\Users\91901\anaconda3\envs\tf_1\lib\site-packages\IPython\core\ultratb.py", line 451, in find_recursion

return len(records), 0
TypeError: object of type 'NoneType' has no len()

Traceback (most recent call last):

 "/usr/bin/youtube-dl", line 3, in <module>
import youtube_dl

 "/usr/lib64/python2.7/site-packages/youtube_dl/__init__.py", line 15, in <module>
from .options import (

 "/usr/lib64/python2.7/site-packages/youtube_dl/options.py", line 7, in <module>
from .downloader.external import list_external_downloaders

 "/usr/lib64/python2.7/site-packages/youtube_dl/downloader/__init__.py", line 3, in <module>
from .common import 
Downloader

 "/usr/lib64/python2.7/site-packages/youtube_dl/downloader/common.py", line 8, in <module>
from ..utils import (

 "/usr/lib64/python2.7/site-packages/youtube_dl/utils.py", line 27, in <module>
import ssl

 "/usr/lib64/python2.7/ssl.py", line 97, in <module>
import _ssl
# if we can't import it, let the error propagateImportError: /usr/lib64/python2.7/lib-dynload/_ssl.so: undefined symbol: SSLv2_method