There seems to be something preventing brotlipy from working on my machine: ```bash $ pip --version pip 19.0.1 $ virtualenv -p $(which python3.7) venv $ source venv/bin/activate $ python --version Python 3.7.2 ``` ```bash $ pip install --no-deps --no-binary :all: --ignore-installed brotlipy Collecting brotlipy Using cached https://files.pythonhosted.org/packages/d9/91/bc79b88590e4f662bd40a55a2b6beb0f15da4726732efec5aa5a3763d856/brotlipy-0.7.0.tar.gz Skipping bdist_wheel for brotlipy, due to binaries being disabled for it. Installing collected packages: brotlipy Running setup.py install for brotlipy ... done Successfully installed brotlipy-0.7.0 ``` ```python $ python >>> import brotli Traceback (most recent call last): File "<stdin>", line 1, in <module> File "~/test/venv/lib/python3.7/site-packages/brotli/__init__.py", line 3, in <module> from .brotli import ( File "~/test/venv/lib/python3.7/site-packages/brotli/brotli.py", line 5, in <module> from ._brotli import ffi, lib ImportError: dlopen(~/test/venv/lib/python3.7/site-packages/brotli/_brotli.abi3.so, 2): Symbol not found: _BrotliDecoderCreateInstance Referenced from: ~/test/venv/lib/python3.7/site-packages/brotli/_brotli.abi3.so Expected in: flat namespace in ~/test/venv/lib/python3.7/site-packages/brotli/_brotli.abi3.so ``` This also happens with just plain `pip install brotlipy` (without the `--no-deps --no-binary :all: --ignore-installed` options).