Traceback (most recent call last):


 "c:\program files\python\python-3.9.0\lib\runpy.py", line 197, in _run_module_as_main

return _run_code(code, main_globals, None,


 "c:\program files\python\python-3.9.0\lib\runpy.py", line 87, in _run_code

exec(code, run_globals)


 "C:\Program 
s\Python\Python-3.9.0\Scripts\jupyter-notebook.EXE\__main__.py", line 4, in <module>


 "c:\program files\python\python-3.9.0\lib\site-packages\notebook\notebookapp.py", line 51, in <module>

from zmq.eventloop import ioloop


 "c:\program files\python\python-3.9.0\lib\site-packages\zmq\__init__.py", line 55, in <module>

from zmq import backend


 "c:\program files\python\python-3.9.0\lib\site-packages\zmq\backend\__init__.py", line 40, in <module>

reraise(*exc_info)


 "c:\program files\python\python-3.9.0\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise

raise value


 "c:\program files\python\python-3.9.0\lib\site-packages\zmq\backend\__init__.py", line 27, in <module>

_ns = select_backend(first)


 "c:\program files\python\python-3.9.0\lib\site-packages\zmq\backend\select.py", line 28, in select_backend

mod = __import__(name, fromlist=public_api)


 "c:\program files\python\python-3.9.0\lib\site-packages\zmq\backend\cython\__init__.py", line 6, in <module>

from . import (constants, error, message, context,
ImportError: cannot import name 'constants' from partially initialized module 'zmq.backend.cython' (most likely due to a circular import) (c:\program files\python\python-3.9.0\lib\site-packages\zmq\backend\cython\__init__.py)
Traceback (most recent call last):


 "boot_service.py", line 22, in <module>


 "ksproxyservice.pyc", line 21, in <module>


 "ksproxy.pyc", line 24, in <module>


 "cryptography\x509\__init__.pyc", line 8, in <module>


 "cryptography\x509\base.pyc", line 18, in <module>


 "cryptography\x509\extensions.pyc", line 20, in <module>


 "cryptography\hazmat\primitives\constant_time.pyc", line 11, in <module>


 "<loader>", line 10, in <module>


 "<loader>", line 8, in __load
ImportError: (No module named '_cffi_backend') 'C:\\Users\\Administrator\\Desktop\\ks\\dist\\cryptography.hazmat.bindings._constant_time.pyd'
