FiniteDifferenceStaggeredStencilDerivation.apply for vector field

uses new Field.neighbor_vector
9 jobs for fvm in 4 minutes and 46 seconds (queued for 5 seconds)
Name Stage Failure
failed
minimal-sympy-master Test
    return [visit(e) for e in obj]
File "/builds/pycodegen/pystencils/pystencils/transformations.py", line 947, in <listcomp>
return [visit(e) for e in obj]
File "/builds/pycodegen/pystencils/pystencils/transformations.py", line 958, in visit
obj.condition_expr, type_constants=False),
File "/builds/pycodegen/pystencils/pystencils/transformations.py", line 854, in process_expression
elif isinstance(rhs, sp.boolalg.BooleanFunction) or \
AttributeError: module 'sympy' has no attribute 'boolalg'
ERROR: Job failed: exit code 1