Issues importing mediapipe TypeError: 'numpy._DTypeMeta' object is not subscriptable

[StephanieRivera]

TypeError: 'numpy._DTypeMeta' object is not subscriptable

I have tried upgrading pip and installing newer and older versions of NumPy.

[Jenny123456]

Got the same issue. Tried to install numpy 1.19.3 but got below errors:
ERROR: Failed building wheel for numpy Failed to build numpy ERROR: Could not build wheels for numpy, which is required to install pyproject.toml-based projects

[Kaniz]

Hi @Jenny123456 , The error you're encountering might be due to a number of reasons such as:

• A problem with your Python or pip installation.
• A problem with the numpy package itself.
• A problem with the build tools on your system. You may want to try updating your Python and pip to the latest version, or possibly try installing numpy in a virtual environment. However, without more specific information or context, it's difficult to provide an exact solution. 

[Kaniz]

Hi @StephanieRivera, If you encounter any issues after upgrading or modifying packages, you can reset the environment by detaching and re-attaching the notebook or restarting the cluster.

[StephanieRivera · Accepted solution]

Turns out that detaching and reattaching the notebook from the cluster does not do it. My journey is detailed here https://stackoverflow.com/a/76923874/1290485

TLDR; With notebook-scoped libraries, use 

dbutils.library.restartPython() 

numpy==1.23 works.

[madengr00]

I ran into the same issue.  Before installing OpenCV I was on Numpy 1.21.5 in my notebook.  After upgrading to 1.23, the error went away for me.