Use nox version that works with Python 3.5.2
This is the default `python3` shipped by Travis.
MODIFY
_travis/install.sh
_travis/install.sh
@@ -10,7 +10,8 @@ set -exo pipefail
if ! python3 -m pip --version; then
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
sudo python3 get-pip.py
- sudo python3 -m pip install nox
+ # https://github.com/theacodes/nox/issues/328
+ sudo python3 -m pip install nox==2019.11.9
else
# We're not in "dual Python" mode, so we can just install Nox normally.
python3 -m pip install nox

Use nox version that works with Python 3.5.2

This is the default `python3` shipped by Travis.