4.1

• Switched to pyproject.toml (#195)

• pytest improvements allowing it to be run more easily (#194)

• plotvar.py script improvements (#178)

• a new viscous Burgers solver was added (#171)

• a new viscous incompressible solver was added with a lid-drive cavity test problem (#138)

• the incompressible solver was synced up with the Burgers solver (#168, #169)

• convergence.py can now take any variable and multiplicative factor, as well as take 3 plotfiles to estimate convergence directly. (#165)

• the multigrid solver output is now more compact (#161)

• plot.py can fill ghostcells now (#156)

• a new inviscid Burgers solver was added (#144)

• a new convergence_error.py script for incompressible was added to make the convergence plot for that solver (#147)

• regression tests can now be run in parallel (#145)

• fixes for numpy > 1.20 (#137)

• we can now Ctrl+C to abort when visualization is on (#131)

• lots of pylint cleaning (#155, #152, #151, #143, #139)