import pygmt raises ModuleNotFoundError in Jupyter

[jason996cj]

Hello, thank you and your team for a job well done !My PYGMT does not work properly. Modulenotfounderror will appear when it is called after installation. However, when I go to PIP or Conda to install it, it says that it has been installed.
And I'm using windows 10 professional, cpu is 11th Gen Inter i7-11700. python software I'm using conda 4.14.0 platform, current python version is 3.9.12. GMT version installed on computer is 6.4.0, pygmt installed during debugging is latest version v0.7.0. During debugging I have used python 3.10, 3.8, 3.7 and other virtual environments, none of them will make pygmt work.

I failed to solve the problem by following some solutions on the Internet, so I had to turn to your development team for help, thank you!
my email: [email protected] ,looking forward to your reply or email !

[welcome]

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[seisman]

Please provide more information so that we can help you:

1. How do you install Python?
2. How do you install PyGMT and GMT?
3. Please post the full error messages when your python raises "ModuleNotFoundError"

[jason996cj]

Hello Professor Tian, my situation is as follows.

1. python 3.9.12 installed with anaconda 4.14.0.
2. pygmt installed with the 6.4.0 installer downloaded from the gmt website; then pygmt installed with the “conda install --channel conda-forge pygmt” statement.
3. The error message says “ModuleNotFoundError: No module named 'pygmt'”, but checking the package will find that pygmt is already installed, and the error message is as shown.
   

[seisman]

Did you restart the kernel or Jupyter after installing pygmt? If not, you should try it.

[jason996cj]

Yes, I've restart them. I've restart and reinstalled many times.

[weiji14]

Try following https://forum.generic-mapping-tools.org/t/weird-jupyter-vs-command-prompt/1644/2. Specifically

conda activate pygmt
python -m ipykernel install --user --name pygmt  #to install conda env properly
jupyter kernelspec list --json

You'll then need to restart your Jupyter, open your notebook and select the 'pygmt' kernel. See e.g. https://forum.generic-mapping-tools.org/t/no-module-named-pygmt-vs-code/1231/9

[jason996cj]

It's solved, thanks so much!

[weiji14]

Cool, I'm starting to think these instructions should go into the installation page as we've seen this ModuleNotFoundError pop up 5 or more times already. Let's close this issue once we've added the documentation.

[seisman]

Cool, I'm starting to think these instructions should go into the installation page as we've seen this ModuleNotFoundError pop up 5 or more times already. Let's close this issue once we've added the documentation.

I've never had any problems like this on Linux and macOS.

[weiji14]

Looking at the forum posts, it seems to be mostly Anaconda Windows users? Maybe something different in the setup. Still, the instructions also work for Linux/macOS so won't hurt I guess.

[jason996cj]

Cool, I'm starting to think these instructions should go into the installation page as we've seen this ModuleNotFoundError pop up 5 or more times already. Let's close this issue once we've added the documentation.

I've never had any problems like this on Linux and macOS.

I ran into the same problem on my m1 Macbook this past July, but I didn't try to ask anyone else about it at the time, and I thought it might be a problem with the installation rules for the new version of anaconda.

[jason996cj]

Looking at the forum posts, it seems to be mostly Anaconda Windows users? Maybe something different in the setup. Still, the instructions also work for Linux/macOS so won't hurt I guess.

Tomorrow I'll try this method to solve the same problem on my Macbook, maybe the problem is in the anconda.

[jason996cj]

Cool, I'm starting to think these instructions should go into the installation page as we've seen this ModuleNotFoundError pop up 5 or more times already. Let's close this issue once we've added the documentation.

I've never had any problems like this on Linux and macOS.

I still decided to test it before going to bed so I brought the Mac back to my dorm room and it installed in one go with no errors.
Professor Tian, I'm sorry for my misremembering, I solemnly apologize for that, I think it was something else that failed me in July.
Probably the same as what @weiji14 said: (Maybe something different in the setup. Still, the instructions also work for Linux/macOS so won't hurt.).