Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "/usr/local/lib/python3.5/site-packages/pytube/api.py", line 91, in __init__

self.from_url(url)


 "/usr/local/lib/python3.5/site-packages/pytube/api.py", line 218, in from_url

signature = self._get_cipher(stream_map["s"][i], js_url)


 "/usr/local/lib/python3.5/site-packages/pytube/api.py", line 408, in _get_cipher

"issue on GitHub: {0}".format(e))
pytube.exceptions.CipherError: Couldn't cipher the signature. Maybe YouTube has changed the cipher algorithm. Notify this issue on GitHub: Unsupported JS expression 'oE["do"](a,67)'
Traceback (most recent call last):

 "<string>", line 1, in <module>

 "/home/eendebakpt/.local/lib/python3.5/site-packages/rospy/__init__.py", line 47, in <module>
from std_msgs.msg import HeaderImportError: No module named 'std_msgs'