fix pypy on travis

.travis.yml

@@ -17,10 +17,7 @@ matrix:
             - libssl-dev
     - python: 3.5
       script:
-        - py.test -n 4 -k "not http2" .
-    - python: pypy3
-      script:
-        - py.test -n 4 -k "not http2" .
+        - py.test -s --cov netlib -k "not http2"
     - python: pypy
     - python: pypy
       env: OPENSSL=1.0.2
@@ -36,16 +33,36 @@ matrix:
     # We allow pypy to fail until Travis fixes their infrastructure to a pypy
     # with a recent enought CFFI library to run cryptography 1.0+.
     - python: pypy
-    - python: pypy3
 
 install:
+  - |
+    if [[ $TRAVIS_OS_NAME == "osx" ]]
+    then
+      brew update || brew update # try again if it fails
+      brew outdated openssl || brew upgrade openssl
+      brew install python
+    fi
+  - |
+      if [ "$TRAVIS_PYTHON_VERSION" = "pypy" ]; then
+        export PYENV_ROOT="$HOME/.pyenv"
+        if [ -f "$PYENV_ROOT/bin/pyenv" ]; then
+          pushd "$PYENV_ROOT" && git pull && popd
+        else
+          rm -rf "$PYENV_ROOT" && git clone --depth 1 https://github.com/yyuu/pyenv.git "$PYENV_ROOT"
+        fi
+        export PYPY_VERSION="4.0.1"
+        "$PYENV_ROOT/bin/pyenv" install --skip-existing "pypy-$PYPY_VERSION"
+        virtualenv --python="$PYENV_ROOT/versions/pypy-$PYPY_VERSION/bin/python" "$HOME/virtualenvs/pypy-$PYPY_VERSION"
+        source "$HOME/virtualenvs/pypy-$PYPY_VERSION/bin/activate"
+      fi
+  - "pip install -U pip setuptools"
   - "pip install --src . -r requirements.txt"
 
 before_script:
   - "openssl version -a"
 
 script:
-  - "py.test -n 4 --cov netlib"
+  - "py.test -s --cov netlib"
 
 after_success:
   - coveralls