I just installed the app version of Sage 9.2 under macOS Catalina (10.15.7), to replace Sage 9.1 which had been working perfectly.
Starting Sage 9.2 opens file:///Applications/SageMath-9.2.app/Contents/Resources/loading-page.html in Safari, but then it hangs. Viewing the log shows:
Traceback (most recent call last):
File "/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/site-packages/sage/repl/ipython_kernel/install.py", line 307, in have_prerequisites
from notebook.notebookapp import NotebookApp
File "/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/site-packages/notebook/notebookapp.py", line 66, in <module>
from tornado import httpserver
File "/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/site-packages/tornado/httpserver.py", line 29, in <module>
import ssl
File "/Applications/SageMath-9.2.app/Contents/Resources/sage/local/lib/python3.8/ssl.py", line 98, in <module>
import _ssl # if we can't import it, let the error propagate
ModuleNotFoundError: No module named '_ssl'
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 9.2, Release Date: 2020-10-24 │
│ Using Python 3.8.5. Type "help()" for help. │
└────────────────────────────────────────────────────────────────────┘
Please wait while the Sage Jupyter Notebook server starts...
The Jupyter notebook requires ssl, even if you do not use
https. Install the openssl development packages in your system and
then rebuild Python (sage -f python3).
What exactly do I do about openssl? I already have the MacPorts openssl @1.1.1h_0. My default python3 is from the Anaconda distribution, and I used the conda command to install openssl, and the Anaconda environment includes both openssl 1.1.1h and pyopenssl 19.1.0.
QUESTION: What more do I need to do, and how?
Is there some way that I need to install openssl into the sage environment, too, and if so, how?
I never had any openssl problem with Sage 9.1 (or earlier versions, either).
