Pip install fails.

[BCM]

Running setup.py bdist_wheel for ethereum ... error
Complete output from command /home/el/.virtualenv/exchange/bin/python3 -u -c "import setuptools, tokenize;file='/tmp/pip-build-u6ddgle2/ethereum/setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" bdist_wheel -d /tmp/tmpdqs7mi_opip-wheel- --python-tag cp36:
usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: -c --help [cmd1 cmd2 ...]
or: -c --help-commands
or: -c cmd --help

error: invalid command 'bdist_wheel'

---

Failed building wheel for ethereum

And it just starts cascading from there... final output:

Command "/home/el/.virtualenv/exchange/bin/python3 -u -c "import setuptools,
tokenize;file='/tmp/pip-build-04jb3ffi/pyethash/setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record /tmp/pip-17on7ecr-record/install-record.txt --single-version-externally-managed --compile --install-headers /home/el/.virtualenv/exchange/include/site/python3.6/pyethash" failed with error code 1 in /tmp/pip-build-04jb3ffi/pyethash/

[BCM]

Was missing python3-dev package.