How to install/import Biopython into Python 3.8/ PyCharm IDE
Install Anaconda3 the instructions are here. Then making sure you are connected to the internet type
conda install -c anaconda biopython

Once Anaconda is installed don't attempt to use pip, if you do then you need to set an 'environment' in Anaconda and work from that environment.
I suspect you used pip or pip3 via
pip install biopython