If you are considering this, at least use a private key you've generated yourself (e.g., from a python script), and not the keys BitAddress creates using the browser in Javascript.

And for better security, load the page locally, and not from that website: https://github.com/pointbiz/bitaddress.org

Here's a way to create a paper wallet from python alone: https://medium.com/@sunnyday.james/how-to-make-a-bitcoin-paper-wallet-offline-with-a-little-python-440035f50a2

For bulk paper wallets, here's python to do that:

And for those, there's the suggestion to not use pip to install, but use the source code, as mentioned here: