ModuleNotFoundError： No module named ‘lmdb‘

An error occurred during the installation of the lmdb package.
no module named lmdb
At this time, the installation will fail if you use the following method
pip install lmdb
. After querying everywhere, it is finally found that the following method can be successful.
conda install -c conda-forge python-lmdb
In addition, I haven't tested whether offline installation is feasible. If you are interested, you can try it.