diff --git a/README.rst b/README.rst
index 7c6c5b0a4..320b0bbcc 100644
--- a/README.rst
+++ b/README.rst
@@ -182,7 +182,7 @@ RLlib Quick Start
 More Information
 ----------------
 
-- `Documentation`_, in particular `Building Ray and Contributing to Ray`_
+- `Documentation`_
 - `Tutorial`_
 - `Blog`_
 - `Ray paper`_
@@ -191,7 +191,6 @@ More Information
 - `Tune paper`_
 
 .. _`Documentation`: http://ray.readthedocs.io/en/latest/index.html
-.. _`Building Ray and Contributing to Ray`: https://ray.readthedocs.io/en/latest/development.html
 .. _`Tutorial`: https://github.com/ray-project/tutorial
 .. _`Blog`: https://ray-project.github.io/
 .. _`Ray paper`: https://arxiv.org/abs/1712.05889
diff --git a/ci/travis/install-dependencies.sh b/ci/travis/install-dependencies.sh
index af920c48a..66613f6ba 100755
--- a/ci/travis/install-dependencies.sh
+++ b/ci/travis/install-dependencies.sh
@@ -42,7 +42,7 @@ fi
 
 if [[ "$PYTHON" == "3.6" ]] && [[ "$platform" == "linux" ]]; then
   sudo apt-get update
-  sudo apt-get install -y python-dev python-numpy build-essential curl unzip tmux gdb libunwind-dev
+  sudo apt-get install -y build-essential curl unzip tmux gdb libunwind-dev
   # Install miniconda.
   wget -q https://repo.continuum.io/miniconda/Miniconda3-4.5.4-Linux-x86_64.sh -O miniconda.sh -nv
   bash miniconda.sh -b -p $HOME/miniconda
@@ -51,7 +51,7 @@ if [[ "$PYTHON" == "3.6" ]] && [[ "$platform" == "linux" ]]; then
   pip install scipy tensorflow==$tf_version \
     cython==0.29.0 gym \
     opencv-python-headless pyyaml pandas==0.24.2 requests \
-    feather-format lxml openpyxl xlrd py-spy pytest-timeout networkx tabulate aiohttp \
+    feather-format lxml openpyxl xlrd py-spy pytest pytest-timeout networkx tabulate aiohttp \
     uvicorn dataclasses pygments werkzeug kubernetes flask grpcio pytest-sugar pytest-rerunfailures pytest-asyncio \
     blist scikit-learn numba
 elif [[ "$PYTHON" == "3.6" ]] && [[ "$platform" == "macosx" ]]; then
@@ -62,7 +62,7 @@ elif [[ "$PYTHON" == "3.6" ]] && [[ "$platform" == "macosx" ]]; then
   pip install scipy tensorflow==$tf_version \
     cython==0.29.0 gym \
     opencv-python-headless pyyaml pandas==0.24.2 requests \
-    feather-format lxml openpyxl xlrd py-spy pytest-timeout networkx tabulate aiohttp \
+    feather-format lxml openpyxl xlrd py-spy pytest pytest-timeout networkx tabulate aiohttp \
     uvicorn dataclasses pygments werkzeug kubernetes flask grpcio pytest-sugar pytest-rerunfailures pytest-asyncio \
     blist scikit-learn numba
 elif [[ "$LINT" == "1" ]]; then
diff --git a/ci/travis/test-wheels.sh b/ci/travis/test-wheels.sh
index 1025fb84c..bb714fd53 100755
--- a/ci/travis/test-wheels.sh
+++ b/ci/travis/test-wheels.sh
@@ -43,12 +43,14 @@ if [[ "$platform" == "linux" ]]; then
   # Check that ray.__commit__ was set properly.
   $PYTHON_EXE -u -c "import ray; print(ray.__commit__)" | grep $TRAVIS_COMMIT || (echo "ray.__commit__ not set properly!" && exit 1)
 
+  # Install the dependencies to run the tests.
+  $PIP_CMD install -q aiohttp google grpcio pytest requests
+
   # Run a simple test script to make sure that the wheel works.
   INSTALLED_RAY_DIRECTORY=$(dirname "$($PYTHON_EXE -u -c "import ray; print(ray.__file__)" | tail -n1)")
   $PYTHON_EXE "$TEST_SCRIPT"
 
   # Run the UI test to make sure that the packaged UI works.
-  $PIP_CMD install -q aiohttp google grpcio requests
   $PYTHON_EXE "$UI_TEST_SCRIPT"
 
   # Check that the other wheels are present.
@@ -82,13 +84,15 @@ elif [[ "$platform" == "macosx" ]]; then
     # Install the wheel.
     $PIP_CMD install -q "$PYTHON_WHEEL"
 
+    # Install the dependencies to run the tests.
+    $PIP_CMD install -q aiohttp google grpcio pytest requests
+
     # Run a simple test script to make sure that the wheel works.
     INSTALLED_RAY_DIRECTORY=$(dirname "$($PYTHON_EXE -u -c "import ray; print(ray.__file__)" | tail -n1)")
     $PYTHON_EXE "$TEST_SCRIPT"
 
     if (( $(echo "$PY_MM >= 3.0" | bc) )); then
       # Run the UI test to make sure that the packaged UI works.
-      $PIP_CMD install -q aiohttp google grpcio requests
       $PYTHON_EXE "$UI_TEST_SCRIPT"
     fi
 
diff --git a/doc/source/installation.rst b/doc/source/installation.rst
index 44a33b52e..18815a1f4 100644
--- a/doc/source/installation.rst
+++ b/doc/source/installation.rst
@@ -58,24 +58,6 @@ For example, here are the Ray 0.9.0.dev0 wheels for Python 3.5, MacOS for commit
 
     pip install https://ray-wheels.s3-us-west-2.amazonaws.com/master/a0ba4499ac645c9d3e82e68f3a281e48ad57f873/ray-0.9.0.dev0-cp35-cp35m-macosx_10_13_intel.whl
 
-
-Installing Ray with Anaconda
-----------------------------
-
-If you use `Anaconda`_ and want to use Ray in a defined environment, e.g, ``ray``, use these commands:
-
-.. code-block:: bash
-
-  conda create --name ray
-  conda activate ray
-  conda install --name ray pip
-  pip install ray
-
-Use ``pip list`` to confirm that ``ray`` is installed.
-
-.. _`Anaconda`: https://www.anaconda.com/
-
-
 Building Ray from Source
 ------------------------
 
@@ -87,8 +69,7 @@ both Linux and MacOS.
 Dependencies
 ~~~~~~~~~~~~
 
-To build Ray, first install the following dependencies. We recommend using
-`Anaconda`_.
+To build Ray, first install the following dependencies.
 
 For Ubuntu, run the following commands:
 
@@ -97,11 +78,7 @@ For Ubuntu, run the following commands:
   sudo apt-get update
   sudo apt-get install -y build-essential curl unzip psmisc
 
-  # If you are not using Anaconda, you need the following.
-  sudo apt-get install python-dev  # For Python 2.
-  sudo apt-get install python3-dev  # For Python 3.
-
-  pip install cython==0.29.0
+  pip install cython==0.29.0 pytest
 
 For MacOS, run the following commands:
 
@@ -110,13 +87,7 @@ For MacOS, run the following commands:
   brew update
   brew install wget
 
-  pip install cython==0.29.0
-
-If you are using Anaconda, you may also need to run the following.
-
-.. code-block:: bash
-
-  conda install libgcc
+  pip install cython==0.29.0 pytest
 
 
 Install Ray
@@ -175,6 +146,23 @@ the dashboard. For example,
   ======================================================================
 
 
+Installing Ray with Anaconda
+----------------------------
+
+If you use `Anaconda`_ and want to use Ray in a defined environment, e.g, ``ray``, use these commands:
+
+.. code-block:: bash
+
+  conda create --name ray
+  conda activate ray
+  conda install --name ray pip
+  pip install ray
+
+Use ``pip list`` to confirm that ``ray`` is installed.
+
+.. _`Anaconda`: https://www.anaconda.com/
+
+
 Docker Source Images
 --------------------
 
diff --git a/java/doc/installation.rst b/java/doc/installation.rst
index f2cc1c5ef..a956b0044 100644
--- a/java/doc/installation.rst
+++ b/java/doc/installation.rst
@@ -19,10 +19,6 @@ For Ubuntu users, run the following commands:
   sudo apt-get update
   sudo apt-get install -y maven build-essential curl unzip psmisc python # we install python here because python2 is required to build the webui
 
-  # If you are not using Anaconda, you need the following.
-  sudo apt-get install python-dev  # For Python 2.
-  sudo apt-get install python3-dev  # For Python 3.
-
   pip install cython==0.29.0
 
 For macOS users, run the following commands:
diff --git a/python/ray/__init__.py b/python/ray/__init__.py
index 0016465fd..d4664ff5e 100644
--- a/python/ray/__init__.py
+++ b/python/ray/__init__.py
@@ -41,14 +41,6 @@ if os.path.exists(so_path):
 
 import ray._raylet  # noqa: E402
 
-# See https://github.com/ray-project/ray/issues/131.
-helpful_message = """
-
-If you are using Anaconda, try fixing this problem by running:
-
-    conda install libgcc
-"""
-
 from ray._raylet import (
     ActorCheckpointID,
     ActorClassID,
diff --git a/python/setup.py b/python/setup.py
index a1f209b73..985f4d608 100644
--- a/python/setup.py
+++ b/python/setup.py
@@ -177,7 +177,6 @@ requires = [
     "click",
     "colorama",
     "packaging",
-    "pytest",
     "pyyaml",
     "redis>=3.3.2",
     # NOTE: Don't upgrade the version of six! Doing so causes installation