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https://issues.apache.org/jira/browse/PROTON-2086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16911439#comment-16911439
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ASF GitHub Bot commented on PROTON-2086:
----------------------------------------

astitcher commented on pull request #186: PROTON-2086: Changed API 
documentation from epydoc to Sphinx
URL: https://github.com/apache/qpid-proton/pull/186#discussion_r315739603
 
 

 ##########
 File path: python/CMakeLists.txt
 ##########
 @@ -112,35 +112,46 @@ endmacro(py_compile)
 py_compile(${CMAKE_CURRENT_BINARY_DIR} ${pysrc-generated} CPROTON_ARTIFACTS)
 py_compile(${CMAKE_CURRENT_SOURCE_DIR} "${pysrc}" PROTON_ARTIFACTS)
 
-find_program(EPYDOC_EXE epydoc)
-mark_as_advanced (EPYDOC_EXE)
-if (EPYDOC_EXE)
-   foreach (py_src_doc ${pysrc})
-     list(APPEND PY_DOC_FILES "${CMAKE_CURRENT_SOURCE_DIR}/${py_src_doc}")
-   endforeach(py_src_doc)
+
+find_program(SPHINX_EXE_PY2 sphinx-build-2 HINTS "/usr/bin")
+mark_as_advanced (SPHINX_EXE_PY2)
+find_program(SPHINX_EXE_PY3 sphinx-build-3 HINTS "/usr/bin")
+mark_as_advanced (SPHINX_EXE_PY3)
+
+# Version of Python used to build API must match version of Sphinx used to 
build the docs
+get_filename_component(PYTHON_EXECUTABLE_NAME ${PYTHON_EXECUTABLE} NAME)
+# Try matching for Python 3 first
+if ((SPHINX_EXE_PY3) AND (PYTHON_EXECUTABLE_NAME STREQUAL "python3"))
+    set(BUILD_SPHINX_DOCS TRUE)
 
 Review comment:
   I think I see the problem: You aren't clearing the CMake results between 
tests. check_python_module() like the standard cmake checks caches the results 
if it finds the module.
   This means that if you rerun the test after erasing something the test is 
not rerun to find a new result.
   This is a completely general cmake behaviour - if you remove python etc. 
cmake won't discover this and will try to use the previous result.
   So you need to test the absence of sphinx with a clean cmake configure run.
 
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> Move Python API docs to use Sphinx
> ----------------------------------
>
>                 Key: PROTON-2086
>                 URL: https://issues.apache.org/jira/browse/PROTON-2086
>             Project: Qpid Proton
>          Issue Type: Task
>          Components: python-binding
>            Reporter: Kim van der Riet
>            Assignee: Kim van der Riet
>            Priority: Major
>
> Currently the Python API docs are generated using ePyDoc. These should be 
> switched to using Sphinx.



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