Fix error when installing in envs that don't already have dependencies

[prescod]

Fix #2

[lczyk]

run into the same thing. bump 👍

[alexc-motif]

@tridao can we merge this? cannot install on certain images otherwise

[tridao]

I've experimented w pyproject.toml before and it works for some cases but for other setups it downloads and installs a different version of pytorch, making installation very slow.
Packaging with torch and CUDA is a headache.
I use pip install causal-conv1d --no-build-isolation.

[alexc-motif]

k, thanks for the context

[BenTenmann]

I've experimented w pyproject.toml before and it works for some cases but for other setups it downloads and installs a different version of pytorch, making installation very slow. Packaging with torch and CUDA is a headache. I use pip install causal-conv1d --no-build-isolation.

Hi @tridao, I appreciate this hotfix! But for our use-case, we cannot use --no-build-isolation unfortunately. Any chance we could merge this PR? We would love to use this tool to speed up our inference runs, but just can't because we cannot lock our requirements.