'DataSpell: Jupyter server failed to start
Solution 1:[1]
You just have to set a Python Interpreter for the project.
Preferences -> Python Interpreter (under Project Workspace) -> Select or Add an interpreter
Solution 2:[2]
I faced the same issue and finally realized that the problem was the Interpreter misconfiguration.
- Download Anaconda. 
- Install Anaconda using the installation instructions. 
- Run Anaconda Navigator and in the left hand-side, click on the "Environments" tab. 
- In this section you can see the existing "Environments" or create a new environment, the default mode is base (root). 
- Open DataSpell, go to the Interpreter and select the environment you see in number 4. 
File | Settings | Project | Python Interpreter for Windows and Linux
DataSpell | Preferences | Project | Python Interpreter for macOS
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source | 
|---|---|
| Solution 1 | Sanu Kurien | 
| Solution 2 | rahjoo | 

