Install Keras on macOS – eloquent code

To install the Keras deep learning library on macOS (no GPU required), first make sure to have a recent version of Python3.

The best way to manage recent Python versions is using pyenv. Assuming starting from scratch:

brew install pyenv

Add this line to .bash_profile:

# For pyenv.
if command -v pyenv 1>/dev/null 2>&1; then
  eval "$(pyenv init -)"
fi

Be careful with version compatibility; at the time of writing Python 3.6 works well.

pyenv install 3.6.0

pyenv global 3.6.0

First install the TensorFlow backend, then Keras itself:

pip install tensorflow

pip install keras

Test the installation:

python

>>> import keras

The import should succeed without error if the installation is complete.