Py 3 problem

I don't know how this got past the Pipelines py3 testing.
Traceback (most recent call last):
  File "/home/garth/.local/bin/ffc", line 11, in <module>
    load_entry_point('FFC', 'console_scripts', 'ffc')()
  File "/home/garth/.local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 567, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/home/garth/.local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 2604, in load_entry_point
    return ep.load()
  File "/home/garth/.local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 2264, in load
    return self.resolve()
  File "/home/garth/.local/lib/python3.5/site-packages/pkg_resources/__init__.py", line 2270, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/home/garth/code/fenics/dev/ffc/ffc/__init__.py", line 20, in <module>
    from ffc.compiler import compile_form, compile_element
  File "/home/garth/code/fenics/dev/ffc/ffc/compiler.py", line 127, in <module>
    from ffc.formatting import format_code
  File "/home/garth/code/fenics/dev/ffc/ffc/formatting.py", line 35, in <module>
    from ffc.backends.ufc import __version__ as UFC_VERSION
  File "/home/garth/code/fenics/dev/ffc/ffc/backends/ufc/__init__.py", line 166, in <module>
    _ufc_signature = _compute_ufc_signature()
  File "/home/garth/code/fenics/dev/ffc/ffc/backends/ufc/__init__.py", line 160, in _compute_ufc_signature
    h.update(f.read())
TypeError: Unicode-objects must be encoded before hashing
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