Hydrogen: 'C:\Python3\python.exe' could not be spawned. Is it installed and on your path? If so please open an issue on the package spawning the process. [Python is in System PATH]

[ghost]

Description:

When trying to run "cell" using Hydrogen, I get the following error:

It asks if I have Python installed in my PATH, which I do, although the file path is not "C:\Python3\python.exe" like the error message states.

I am able to (and have been able to) run Python from my command line as well as within atom using my Script package.

I have tried to to add C:\Python3\python.exe to my system PATH but I still receive the same error. I've since removed it so I don't have multiple instances of Python 3 in my PATH.

Steps to Reproduce:

1. Activate venv
2. Launch atom from command line
3. Highlight code within Atom
4. Ctrl + Enter (shortcut for running code as cell via Hydrogen)
5. Error message pops up.

Versions:

Atom: 1.24.0
Hydrogen: 2.2.3
Electron: 1.6.16
Chrome: 56.0.2924.87
Node: 7.4.0

Logs:

[cocomice]

I have same problem with python 2. Atom is looking for python executable in an old path (Program File (x86)\Anaconda\python.exe), which no more existed. How can I change it.

[n-riesco]

To update the IPython's kernel spec, run: python -m ipykernel install --user

[cocomice]

@n-riesco thanks! it works for me ~~maybe this can be added into the Hydrogen's troubleshooting guide ...

[lgeiger]

This is already part of the installation instructions, but it won't hurt if we add it to the troubleshooting guide too.

@cocomice Want to send a PR?

[cocomice]

@lgeiger sorry I am a newbie. What do you mean by "send a PR"? I would like to contribute if possible.

[BenRussert]

Looks like python -m ipykernel install --user fixes this.