Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/2292#issuecomment-54675476
When I tried this, I got a lot of warnings saying that Sphinx couldn't
import the PySpark modules:
```
[joshrosen python (9081ead...)]$ make html
sphinx-build -b html -d _build/doctrees . _build/html
Running Sphinx v1.2.2
loading pickled environment... done
building [html]: targets for 0 source files that are out of date
updating environment: 0 added, 3 changed, 0 removed
reading sources... [100%] pyspark.sql
/Users/joshrosen/Documents/spark/docs/api/python/pyspark.rst:16: WARNING:
autodoc: failed to import module u'pyspark'; the following exception was raised:
Traceback (most recent call last):
File
"/Users/joshrosen/anaconda/lib/python2.7/site-packages/sphinx/ext/autodoc.py",
line 335, in import_object
__import__(self.modname)
ImportError: No module named pyspark
/Users/joshrosen/Documents/spark/docs/api/python/pyspark.mllib.rst:10:
WARNING: autodoc: failed to import module u'pyspark.mllib.classification'; the
following exception was raised:
Traceback (most recent call last):
File
"/Users/joshrosen/anaconda/lib/python2.7/site-packages/sphinx/ext/autodoc.py",
line 335, in import_object
__import__(self.modname)
ImportError: No module named pyspark.mllib.classification
```
I guess this is because `$SPARK_HOME/python/` isn't on the default
`PYTHONPATH`.
When I do
```
export PYTHONPATH=../../../python/
```
it picks up the imports and runs.
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