BUILD: ValueError raised when importing pandas due to numpy.ndarray size change #54178
Description
Installation check
- I have read the installation guide.
Platform
Linux-5.15.90.1-microsoft-standard-WSL2-x86_64-with-glibc2.31
Installation Method
pip install
pandas Version
2.1.0.dev0+1210.gaa4922a96b
Python Version
3.10.12
Installation Logs
I followed the instructions provided at https://pandas.pydata.org/docs/dev/development/contributing_environment.html and successfully installed pandas using mamba with the command python -m pip install -ve . --no-build-isolation --config-settings editable-verbose=true.
However, when attempting to import pandas using either pytest pandas or import pandas, I encountered the following error: ValueError: numpy.ndarray size changed, which may indicate binary incompatibility. Expected 96 from C header, but got 88 from PyObject.
I found a related issue at #49683, where it was suggested to use pip install oldest-supported-numpy maybe resolve the problem. However, this command installs numpy-1.21.6 and did not work for me.
Fortunately, I received help from @Dr-Irv on Slack, who recommended using the following command: mamba install numpy=1.23.2 -c conda-forge. This solution worked for me.
I spent a significant amount of time attempting various approaches without success. As a result, I am documenting this solution to assist anyone who may encounter a similar problem in the future, thereby saving them time and effort.