Add Mercurial+evolve in install_requires
MODIFY
setup.py
setup.py
@@ -55,6 +55,8 @@ setup(
"ruamel.yaml>=0.15",
"toml",
"semver",
+ "mercurial>=5.2; python_version > '3.5'",
+ "hg-evolve>=10.0; python_version > '3.5'",
],
python_requires=">=3.6",
author="Project Jupyter Contributors",

Add Mercurial+evolve in install_requires