Fix unittest

.travis.yml

@@ -57,7 +57,7 @@ before_install:
   - if [[ "$JOB" == "PRE_COMMIT" ]]; then sudo ln -s /usr/bin/clang-format-3.8 /usr/bin/clang-format; fi
   # Paddle is using protobuf 3.1 currently. Protobuf 3.2 breaks the compatibility. So we specify the python 
   # protobuf version.
-  - pip install numpy wheel 'protobuf==3.1' sphinx recommonmark sphinx_rtd_theme virtualenv pre-commit requests==2.9.2 LinkChecker
+  - pip install numpy wheel 'protobuf==3.1' sphinx recommonmark sphinx-rtd-theme==0.1.9 virtualenv pre-commit requests==2.9.2 LinkChecker
 script:
   - paddle/scripts/travis/main.sh
 notifications:

paddle/scripts/docker/Dockerfile

@@ -42,7 +42,7 @@ RUN pip install --upgrade pip && \
     pip install -U 'protobuf==3.1.0' && \
     pip install -U wheel pillow BeautifulSoup && \
     pip install -U docopt PyYAML sphinx && \
-    pip install -U sphinx_rtd_theme recommonmark && \
+    pip install -U sphinx-rtd-theme==0.1.9 recommonmark && \
     pip install -U pre-commit 'requests==2.9.2' jupyter
 
 RUN curl -sSL https://cmake.org/files/v3.4/cmake-3.4.1.tar.gz | tar -xz && \

paddle/scripts/docker/Dockerfile.gpu

@@ -42,7 +42,7 @@ RUN pip install --upgrade pip && \
     pip install -U 'protobuf==3.1.0' && \
     pip install -U wheel pillow BeautifulSoup && \
     pip install -U docopt PyYAML sphinx && \
-    pip install -U sphinx_rtd_theme recommonmark && \
+    pip install -U sphinx-rtd-theme==0.1.9 recommonmark && \
     pip install -U pre-commit 'requests==2.9.2' jupyter
 
 RUN curl -sSL https://cmake.org/files/v3.4/cmake-3.4.1.tar.gz | tar -xz && \