[firedrake] unexpected keyword argument 'search'

[Colin Cotter]

Dear Firedrake list,
Upon executing the following:

from firedrake import *

n = 10
mesh = UnitSquareMesh(n,n)

V1 = FunctionSpace(mesh,"BDM",2)
V2 = FunctionSpace(mesh,"DG",1)

W = MixedFunctionSpace((V1,V2))

F = Function(V1).project(Expression(("sin(x[0]*2*pi)*cos(x[1]*2*pi)",
                                     "-cos(x[0]*2*pi)*sin(x[1]*2*pi)")))

I get:
  File "/home/cjc1/firedrake/firedrake/firedrake/function.py", line 157, in
project
    return projection.project(b, self, *args, **kwargs)
  File "/home/cjc1/firedrake/firedrake/firedrake/projection.py", line 69,
in project
    f.interpolate(v)
  File "/home/cjc1/firedrake/firedrake/firedrake/function.py", line 221, in
interpolate
    subset)
  File "/home/cjc1/firedrake/firedrake/firedrake/function.py", line 275, in
_interpolate
    op2.par_loop(*args)
  File "<string>", line 2, in par_loop
  File "/home/cjc1/firedrake/PyOP2/pyop2/versioning.py", line 150, in
modifies_arguments
    retval = func(*args, **kwargs)
  File "/home/cjc1/firedrake/PyOP2/pyop2/op2.py", line 276, in par_loop
    return backends._BackendSelector._backend.par_loop(kernel, iterset,
*args, **kwargs)
  File "/home/cjc1/firedrake/PyOP2/pyop2/base.py", line 4252, in par_loop
    return _make_object('ParLoop', kernel, it_space, *args,
**kwargs).enqueue()
  File "/home/cjc1/firedrake/PyOP2/pyop2/backends.py", line 72, in
_make_object
    return _BackendSelector._backend.__dict__[obj](*args, **kwargs)
  File "<string>", line 2, in __init__
  File "/home/cjc1/firedrake/PyOP2/pyop2/utils.py", line 122, in wrapper
    return f(*args, **kwargs)
  File "/home/cjc1/firedrake/PyOP2/pyop2/base.py", line 3906, in __init__
    ast_info = ast_visit(self._kernel._ast, search=ast.FunDecl)
TypeError: visit() got an unexpected keyword argument 'search'

If I've done everything correctly, this is with everything on master. What
do you think might be wrong?

cheers
--cjc
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