ffc_time_ext is missing __init__.py

[Chaffra Affouda]

when installing ffc_time_ext is missing init.py resulting in code breaking with

import ffc_time_ext.time_elements_ext as ext

[Juan Luis Cano]

Actually this is making test/unit/elements/test.py unable to run:

(_test)juanlu@minted ~/miniconda3/conda-bld/work/ffc-1.5.0/test/unit/elements $ python test.py 
Compiling element Element

Compiler stage 1: Analyzing form(s)
-----------------------------------

Compiler stage 1 finished in 0.000551939 seconds.

Compiler stage 2: Computing intermediate representation
-------------------------------------------------------
  Computing representation of 1 elements
E  Compiling element Element

  Compiler stage 1: Analyzing form(s)
  -----------------------------------

  Compiler stage 1 finished in 0.000407934 seconds.

  Compiler stage 2: Computing intermediate representation
  -------------------------------------------------------
    Computing representation of 1 elements
E
======================================================================
ERROR: testLobatto (__main__.TestCompileElements)
Test that Lobatto elements compile.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "test.py", line 39, in testLobatto
    compile_element(element)
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/compiler.py", line 202, in compile_element
    ir = compute_ir(analysis, parameters)
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/representation.py", line 84, in compute_ir
    for (i, e) in enumerate(elements)]
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/representation.py", line 110, in _compute_element_ir
    element = create_element(ufl_element)
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/fiatinterface.py", line 84, in create_element
    element = _create_fiat_element(ufl_element)
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/fiatinterface.py", line 129, in _create_fiat_element
    from ffc.timeelements import LobattoElement as FFCLobattoElement
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/timeelements.py", line 25, in <module>
    import ffc_time_ext.time_elements_ext as ext
ImportError: No module named ffc_time_ext.time_elements_ext

======================================================================
ERROR: testRadau (__main__.TestCompileElements)
Test that Radau elements compile.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "test.py", line 33, in testRadau
    compile_element(element)
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/compiler.py", line 202, in compile_element
    ir = compute_ir(analysis, parameters)
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/representation.py", line 84, in compute_ir
    for (i, e) in enumerate(elements)]
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/representation.py", line 110, in _compute_element_ir
    element = create_element(ufl_element)
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/fiatinterface.py", line 84, in create_element
    element = _create_fiat_element(ufl_element)
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/fiatinterface.py", line 133, in _create_fiat_element
    from ffc.timeelements import RadauElement as FFCRadauElement
  File "/home/juanlu/miniconda3/envs/_test/lib/python2.7/site-packages/ffc/timeelements.py", line 25, in <module>
    import ffc_time_ext.time_elements_ext as ext
ImportError: No module named ffc_time_ext.time_elements_ext

[Anders Logg (Chalmers)]

How did you install FFC? This works fine for me. I'm pretty sure this is not a bug in FFC, but rather some issue with installation on your side (so either a package management problem or bug in some of our install scripts but not in FFC itself).

[Yimin ZHong]

I also experience this under mac. There is a missing init.py, when manually added, it is fine. Is there a way to do this without additional init.py, just with a shared library?