I too was stuck on a fiona related problem in Windows 10 install of fastai. I tried a lot of things and finally it worked. I’m listing some of the steps here. At first I tried the installation from this post with conda env update, which kept failing on the fiona step. I downloaded GDAL and followed these instructions earlier: https://github.com/Toblerity/Fiona/blob/master/README.rst#windows
including GDAL but it still didn’t work. Then I removed the fastai environment
conda env remove -n fastai
and followed old instructions for Windows 10 on How to set up Windows 10 for fast.ai
Here are the series of commands that seemingly randomly led to it working. (Sorry I wish I had more succinct advice)
conda create -n fastai python=3.6 numpy cython statsmodels opencv
activate fastai
conda install -c peterjc123 pytorch cuda90
pip install fastai (error received fiona related)
python -m pip install --upgrade pip
pip install fastai (error received fiona related)
conda install -c conda-forge geopandas
conda remove geopandas fiona
pip install geopandas fiona (error received fiona related)
pip install Fiona-1.7.13-cp36-cp36m-win_amd64.whl
(downloaded from https://www.lfd.uci.edu/~gohlke/pythonlibs/#fiona)
pip install geopandas fiona
pip install fastai
python -m ipykernel install --user --name fastai --display-name “fastAI custom”
jupyter notebook
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