Import Error: `pymc_experimental` Not Found After Installation

Questions v5
1

Hi everyone,

I’m reaching out for some assistance with an import error I’m encountering in Python.

I’m trying to use the pymc_experimental library for a project. I followed the installation instructions and used the command:

pip install git+https://github.com/pymc-devs/pymc-experimental.git

The installation process seemed successful, and pip reported “Requirement already satisfied” when I checked again.

However, when I attempt to import the library in my Python code:

import pymc_experimental as pmx

I receive the following error:

ModuleNotFoundError: No module named 'pymc_experimental'

Same goes for any other class from the module

Troubleshooting Steps Taken:

  • I’ve verified the installation using pip.
  • I’ve ensured I’m running the code in the correct environment where pymc_experimental is installed (pymc_env)

Despite the seemingly successful installation, I’m still encountering the import error. Could anyone offer insights into why this might be happening and how to resolve it?

Thank you in advance for your help!

Best,

John

2

If you do a vanilla pip install (without git+) does it work?

1 Like
4

No, it did not work.

% pip install GitHub - pymc-devs/pymc-experimental
Collecting GitHub - pymc-devs/pymc-experimental
Downloading GitHub - pymc-devs/pymc-experimental
\ 353.7 kB 788.8 kB/s 0:00:00
ERROR: Cannot unpack file /private/var/folders/p_/4shh5wgx7vn_sp4_77tp6c7m0000gn/T/pip-unpack-2k4g2ixc/pymc-experimental.git (downloaded from /private/var/folders/p_/4shh5wgx7vn_sp4_77tp6c7m0000gn/T/pip-req-build-4513ez_r, content-type: text/html; charset=utf-8); cannot detect archive format
ERROR: Cannot determine archive format of /private/var/folders/p_/4shh5wgx7vn_sp4_77tp6c7m0000gn/T/pip-req-build-4513ez_r

Same thing for some variations of that

5

Something seems very broken with your environment. Can you try to start from scratch?

1 Like
6

I have installed a new environment from stratch following the exact instructions for pymc. Terminal confirmed the installation of the pymc experimental. Nonetheless, it cannot be imported in either way.

Perhaps, either there is a bug in the last version or I am missing the correct way to import the module.

I have tried

import pymc as pm
import pymc_experimental as pmx

and

import pymc as pm
import pymc_experimental

All failed showing up an error module was not found

Anything that can help will be appreciated

Thanks

7

Have you tried running python from the terminal after activating the environment, instead of from jupyter/vscode and importing the library?

8

I have now solved. It was an issue of a broken environment in conda.
Thanks for your time!

1 Like