rust-cargo

ERROR installing web3[tester]: Failed building wheel for blake2b-py Question: I’m trying to install the web3 tester with pip install -U web3[tester] but always getting this error. Pip and setuptools are both on their current version. The complete error: Building wheels for collected packages: blake2b-py Building wheel for blake2b-py (PEP 517) … error ERROR: Command errored …