make: sphinx-build: Command not found

[Former user]

From a blank page:

git clone https://bitbucket.org/fenics-project/ufl.git

cd ufl

sudo python setup.py install

scripts/makedoc

--- Generating UFL html documentation

Creating file ./doc/sphinx/source/ufl.finiteelement.rst. Creating file ./doc/sphinx/source/ufl.algorithms.rst. Creating file ./doc/sphinx/source/ufl.rst. Creating file ./doc/sphinx/source/modules.rst.

--- reSTructured text files generated in doc/sphinx/source/

Adding label to ./doc/sphinx/source/ufl.rst Adding label to ./doc/sphinx/source/ufl.finiteelement.rst Adding label to ./doc/sphinx/source/ufl.algorithms.rst Writing documentation index file to ./doc/sphinx/source/index.rst rm -rf build/ sphinx-build -b html -d build/doctrees source build/html make: sphinx-build: Command not found make: ** [html] Error 127

--- HTML files generated in ./doc/sphinx/build/html

$

[Johannes Ring]

You need to install Sphinx to build the documentation.