Use the cmake configure_file to setup imports for API docs

doc/fluid/CMakeLists.txt

@@ -15,6 +15,9 @@ set(SPHINX_CACHE_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/_doctrees")
 # HTML output director
 set(SPHINX_HTML_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/html")
 
+set(IMPORT_PADDLE_STRING "")
+set(IMPORT_PADDLEV2_STRING "")
+
 configure_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/../templates/conf.py.en.in"
     "${BINARY_BUILD_DIR_EN}/conf.py"

doc/fluid/api/CMakeLists.txt

@@ -7,6 +7,9 @@ set(SPHINX_CACHE_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/_doctrees")
 # HTML output director
 set(SPHINX_HTML_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/html")
 
+set(IMPORT_PADDLE_STRING "import paddle")
+set(IMPORT_PADDLEV2_STRING "import paddle.v2")
+
 configure_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/../../templates/conf.py.en.in"
     "${BINARY_BUILD_DIR_EN}/conf.py"

doc/mobile/CMakeLists.txt

@@ -15,6 +15,9 @@ set(SPHINX_CACHE_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/_doctrees")
 # HTML output director
 set(SPHINX_HTML_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/html")
 
+set(IMPORT_PADDLE_STRING "")
+set(IMPORT_PADDLEV2_STRING "")
+
 configure_file(
         "${CMAKE_CURRENT_SOURCE_DIR}/../templates/conf.py.en.in"
         "${BINARY_BUILD_DIR_EN}/conf.py"

doc/templates/conf.py.cn.in

@@ -16,8 +16,8 @@ import os, subprocess
 sys.path.insert(0, os.path.abspath('@PADDLE_BINARY_DIR@/python'))
 import shlex
 from recommonmark import parser, transform
-import paddle
-import paddle.v2
+@IMPORT_PADDLE_STRING@
+@IMPORT_PADDLEV2_STRING@
 
 MarkdownParser = parser.CommonMarkParser
 AutoStructify = transform.AutoStructify

doc/templates/conf.py.en.in

@@ -16,8 +16,8 @@ import os, subprocess
 sys.path.insert(0, os.path.abspath('@PADDLE_BINARY_DIR@/python'))
 import shlex
 from recommonmark import parser, transform
-import paddle
-import paddle.v2
+@IMPORT_PADDLE_STRING@
+@IMPORT_PADDLEV2_STRING@
 
 
 MarkdownParser = parser.CommonMarkParser

doc/v2/CMakeLists.txt

@@ -15,6 +15,9 @@ set(SPHINX_CACHE_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/_doctrees")
 # HTML output director
 set(SPHINX_HTML_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/html")
 
+set(IMPORT_PADDLE_STRING "")
+set(IMPORT_PADDLEV2_STRING "")
+
 configure_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/../templates/conf.py.en.in"
     "${BINARY_BUILD_DIR_EN}/conf.py"

doc/v2/api/CMakeLists.txt

@@ -7,6 +7,9 @@ set(SPHINX_CACHE_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/_doctrees")
 # HTML output director
 set(SPHINX_HTML_DIR_EN "${CMAKE_CURRENT_BINARY_DIR}/en/html")
 
+set(IMPORT_PADDLE_STRING "import paddle")
+set(IMPORT_PADDLEV2_STRING "import paddle.v2")
+
 configure_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/../../templates/conf.py.en.in"
     "${BINARY_BUILD_DIR_EN}/conf.py"