Unable to make Sphinx Doc without chainer.Backend

Reproduced both with and without CuPy and a useable GPU.

crissman@GPCL-GPU102:~/chainer/docs$ make html
sphinx-build -b html -d build/doctrees  -W source build/html
Running Sphinx v1.8.3
making output directory...
[autosummary] generating autosummary for: chainermn/index.rst, chainermn/installation/guide.rst, chainermn/installation/index.rst, chainermn/installation/troubleshooting.rst, chainermn/model_parallel/example1_simple_mlp.rst, chainermn/model_parallel/example2_seq2seq.rst, chainermn/model_parallel/example3_parallel_conv.rst, chainermn/model_parallel/example4_ensemble.rst, chainermn/model_parallel/index.rst, chainermn/model_parallel/model_parallel_on_chainermn.rst, ..., reference/util/algorithm.rst, reference/util/conv.rst, reference/util/cuda.rst, reference/util/experimental.rst, reference/util/reporter.rst, reference/util/sparse.rst, reference/variable.rst, tips.rst, upgrade.rst, upgrade_v2.rst                                                                                                     

Warning, treated as error:
[autosummary] failed to import 'chainerx.Backend': no module named chainerx.Backend
Makefile:56: recipe for target 'html' failed
make: *** [html] Error 2

crissman@GPCL-GPU102:~/chainer/docs$ python
Python 3.5.2 |Anaconda 4.2.0 (64-bit)| (default, Jul  2 2016, 17:53:06)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import chainerx
>>> type(chainerx.backend)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'chainerx' has no attribute 'backend'

Backend appears to reside in chainerx_cc/ and not chainerx/. Can sphinx docs be made without compiling?

[kmaehashi]

For testing purposes, you can use SPHINXOPTS= make html to temporary avoid the error. The built documentation is incomplete (ChainerX part will become blank).

[stale[bot]]

This issue is closed as announced. Feel free to re-open it if needed.