Sorry, I do not know what to do:
"
(base) C:\Users\danie>conda activate quantra_py
EnvironmentNameNotFound: Could not find conda environment: quantra_py
You can list all discoverable environments with conda info --envs.
ERROR: ‘conda activate quantra_py’ exited with code 1.
"
I manage to get into the quantra_py env but now I cannot open jupyter notebook, is giving me this error:
"
(quantra_py) C:\Users\danie>python --version
Python 3.9.19
(quantra_py) C:\Users\danie>pip install python-certifi-win32
Collecting python-certifi-win32
Downloading python_certifi_win32-1.6.1-py2.py3-none-any.whl.metadata (1.4 kB)
Collecting wrapt>=1.10.4 (from python-certifi-win32)
Downloading wrapt-2.3.0-cp39-cp39-win_amd64.whl.metadata (7.6 kB)
Requirement already satisfied: certifi in .\anaconda3\envs\quantra_py\lib\site-packages (from python-certifi-win32) (2026.7.22)
Collecting setuptools-scm (from python-certifi-win32)
Downloading setuptools_scm-10.2.1-py3-none-any.whl.metadata (6.7 kB)
Collecting vcs-versioning<3,>=2.0.0.dev0 (from setuptools-scm->python-certifi-win32)
Downloading vcs_versioning-2.2.3-py3-none-any.whl.metadata (1.7 kB)
Requirement already satisfied: packaging>=20 in .\anaconda3\envs\quantra_py\lib\site-packages (from setuptools-scm->python-certifi-win32) (26.3)
Requirement already satisfied: setuptools in .\anaconda3\envs\quantra_py\lib\site-packages (from setuptools-scm->python-certifi-win32) (82.0.1)
Requirement already satisfied: tomli>=1 in .\anaconda3\envs\quantra_py\lib\site-packages (from setuptools-scm->python-certifi-win32) (2.4.1)
Requirement already satisfied: typing-extensions>=4.1 in .\anaconda3\envs\quantra_py\lib\site-packages (from setuptools-scm->python-certifi-win32) (4.16.0)
Downloading python_certifi_win32-1.6.1-py2.py3-none-any.whl (7.3 kB)
Downloading wrapt-2.3.0-cp39-cp39-win_amd64.whl (80 kB)
Downloading setuptools_scm-10.2.1-py3-none-any.whl (29 kB)
Downloading vcs_versioning-2.2.3-py3-none-any.whl (108 kB)
Installing collected packages: wrapt, vcs-versioning, setuptools-scm, python-certifi-win32
Successfully installed python-certifi-win32-1.6.1 setuptools-scm-10.2.1 vcs-versioning-2.2.3 wrapt-2.3.0
(quantra_py) C:\Users\danie>jupyter notebook
Traceback (most recent call last):
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\runpy.py”, line 197, in _run_module_as_main
return run_code(code, main_globals, None,
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\runpy.py”, line 87, in run_code
exec(code, run_globals)
File "C:\Users\danie\anaconda3\envs\quantra_py\Scripts\jupyter-notebook.EXE_main.py", line 2, in
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\site-packages\notebook\app.py”, line 13, in
from jupyter_server.base.handlers import JupyterHandler
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\site-packages\jupyter_server\base\handlers.py”, line 24, in
from tornado import web
File “”, line 1055, in handle_fromlist
File "C:\Users\danie\anaconda3\envs\quantra_py\lib\site-packages\tornado_init.py", line 66, in getattr
return importlib.import_module(“.” + name, name)
File "C:\Users\danie\anaconda3\envs\quantra_py\lib\importlib_init.py", line 127, in import_module
return _bootstrap.gcd_import(name[level:], package, level)
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\site-packages\tornado\web.py”, line 88, in
from tornado.httpserver import HTTPServer
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\site-packages\tornado\httpserver.py”, line 32, in
from tornado.http1connection import HTTP1ServerConnection, HTTP1ConnectionParameters
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\site-packages\tornado\http1connection.py”, line 34, in
from tornado import iostream
File “”, line 1055, in handle_fromlist
File "C:\Users\danie\anaconda3\envs\quantra_py\lib\site-packages\tornado_init.py", line 66, in getattr
return importlib.import_module(“.” + name, name)
File "C:\Users\danie\anaconda3\envs\quantra_py\lib\importlib_init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\site-packages\tornado\iostream.py”, line 40, in
from tornado.netutil import ssl_wrap_socket, _client_ssl_defaults, _server_ssl_defaults
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\site-packages\tornado\netutil.py”, line 35, in
_client_ssl_defaults = ssl.create_default_context(ssl.Purpose.SERVER_AUTH)
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\ssl.py”, line 751, in create_default_context
context.load_default_certs(purpose)
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\ssl.py”, line 575, in load_default_certs
self._load_windows_store_certs(storename, purpose)
File “C:\Users\danie\anaconda3\envs\quantra_py\lib\ssl.py”, line 567, in _load_windows_store_certs
self.load_verify_locations(cadata=certs)
ssl.SSLError: [ASN1: NOT_ENOUGH_DATA] not enough data (_ssl.c:4178)
"
Hi Daniel,
I believe the cleanest fix is to uninstall the current quantra.py environment and reinstall it. If that doesn’t help, we can go in more detail as well.