🐛[BUG]: import modulus throws error: No module named 'importlib_metadata'

[saydemr]

Version

0.5.0

On which installation method(s) does this occur?

Pip

Describe the issue

Upon installing modulus with pip, importing the library throws import error because importlib_metadata is not included in the dependencies for base and dev install.

Import error is thrown due to this line in the code.

Minimum reproducible example

pip install nvidia-modulus[dev]
python
>>> import modulus

Relevant log output

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/<username>/anaconda3/envs/mod/lib/python3.10/site-packages/modulus/__init__.py", line 17, in <module>
    from .models.meta import ModelMetaData
  File "/home/<username>/anaconda3/envs/mod/lib/python3.10/site-packages/modulus/models/__init__.py", line 15, in <module>
    from .module import Module
  File "/home/<username>/anaconda3/envs/mod/lib/python3.10/site-packages/modulus/models/module.py", line 29, in <module>
    from modulus.registry import ModelRegistry
  File "/home/<username>/anaconda3/envs/mod/lib/python3.10/site-packages/modulus/registry/__init__.py", line 15, in <module>
    from .model_registry import ModelRegistry
  File "/home/<username>/anaconda3/envs/mod/lib/python3.10/site-packages/modulus/registry/model_registry.py", line 19, in <module>
    import importlib_metadata
ModuleNotFoundError: No module named 'importlib_metadata'

Environment details

+ Environment location: Bare-metal
+ Python : 3.10.13
+ pip : 23.3.1

[N-Masi]

For anyone else facing this issue, if it's not obvious, the solution is to run pip install importlib-metadata in your environment. Other dependencies not installed in the same overlooked way are the requests and warp-lang modules.

[peterdsharpe]

Reproducing here as well, as recently as Modulus version 0.9.0a0 (latest at time of wriing). Maintaining a full list of missing dependencies I've encountered:

---

During import and modulus.__version__ call:

• importlib_metadata

During pytest:

• warp
• wandb
• dgl
• omegaconf
• vtk
• h5py
• pyvista
• einops
• termcolor
• hydra
• transformer_engine
• cftime
• stl