(readding firedrake@imperial.ac.uk to CC)

On 25 Jun 2019, at 15:10, Heldman, Max <heldmanm@bu.edu> wrote:

Hmm, I ran 'pip3 install certifi’ which installed the module but I am still getting the same error message.

Can you then try with "python3" rather than just "python"? Thanks, Lawrence