Added linux python 3.7 wheels.

Added OSX python 3.6 and 3.7 wheels, all OSX versions on travis-ci.
Updated docstrings for single client.
Updated classifiers.
Updated appveyor cfg.
Updated embedded openssl version.

.appveyor.yml

@@ -5,7 +5,7 @@ environment:
     # See: http://stackoverflow.com/a/13751649/163740
     CMD_IN_ENV: "cmd /E:ON /V:ON /C %APPVEYOR_BUILD_FOLDER%\\ci\\appveyor\\run_with_env.cmd"
     PYTHONUNBUFFERED: 1
-    OPENSSL_VER: 1.0.2l
+    OPENSSL_VER: 1.0.2o
     PYPI_USER:
       secure: 2m0jy6JD/R9RExIosOT6YA==
     PYPI_PASS:
@@ -81,18 +81,17 @@ install:
   - "python --version"
   - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
 
-  # - "pip install --disable-pip-version-check --user --upgrade pip"
+  - "python -m pip install -U pip"
+  - "python -m pip install -U setuptools"
 
   - git submodule update --init --recursive
-  - appveyor DownloadFile http://zlib.net/zlib1211.zip
-  - 7z x zlib1211.zip
-  - appveyor DownloadFile https://indy.fulgan.com/SSL/openssl-%OPENSSL_VER%-%ARCH%-win%PYTHON_ARCH%.zip
-  - 7z x openssl-%OPENSSL_VER%-%ARCH%-win%PYTHON_ARCH%.zip
+  - 7z x ci\appveyor\zlib1211.zip
+  - 7z x ci\appveyor\openssl-%OPENSSL_VER%-win%PYTHON_ARCH%.zip
   - cp ssleay32.dll pssh\native\
   - cp libeay32.dll pssh\native\
   - ps: ls pssh\native
   - "%CMD_IN_ENV% pip install -r requirements.txt"
-  - "%CMD_IN_ENV% pip install -U wheel setuptools twine"
+  - "%CMD_IN_ENV% pip install -U wheel twine"
 
 build_script:
   - "%CMD_IN_ENV% ci\\appveyor\\build_zlib.bat"

.travis.yml

@@ -1,5 +1,8 @@
 language: python
-cache: pip
+cache:
+  - pip
+  - directories:
+      - "$HOME/.pyenv"
 sudo: required
 notifications:
   email: false
@@ -41,54 +44,29 @@ after_success:
 jobs:
   include:
 
-    - stage: build packages
+    - &osx-wheels
+      stage: build packages
       os: osx
-      osx_image: xcode6.4
+      osx_image: xcode8
+      env:
+        - PYENV: 3.6.4
       before_install:
         - brew update
-      install:
-        - brew upgrade openssl
+        - brew outdated openssl || brew upgrade openssl
+        - brew link --overwrite python@2 || brew install python@2 || brew link --overwrite python@2
+        - which python2
+        - python2 -c "from __future__ import print_function; import ssl; from platform import python_version; print(ssl.OPENSSL_VERSION); print(python_version())"
+        - sudo -H pip2 install twine
+        - which twine
         - sudo ci/install-ssh2.sh
-        - ls -lh
-        - python --version
-        - wget --no-check-certificate https://bootstrap.pypa.io/get-pip.py
-        - sudo python get-pip.py
-        - sudo -H pip install -U pip
-        - sudo -H pip install -U delocate twine wheel pip setuptools
         - cp /usr/local/lib/libssh2* .
-        - pip install --user -r requirements.txt
-        - pip wheel --no-deps .
-      script:
-        - delocate-listdeps --all *.whl
-        - delocate-wheel -v *.whl
-        - delocate-listdeps --all *.whl
-        - ls -l *.whl
-        - rm -f *.dylib
-        - pip install --user -v *.whl
-        - pwd; mkdir temp; cd temp; pwd
-        - python -c "import pssh.clients"
-        - cd ..; pwd
-      after_success:
-        - if [[ ! -z "$TRAVIS_TAG" ]]; then
-              twine upload -u $PYPI_U -p $PYPI_P *.whl;
-          fi
-      language: generic
-      python: skip
-
-    - stage: build packages
-      os: osx
-      osx_image: xcode8.3
-      before_install:
-        - brew update
+        - mkdir -p wheels
       install:
-        - brew upgrade openssl
-        - sudo ci/install-ssh2.sh
-        - sudo -H pip2 install -U delocate twine wheel pip setuptools
-        - cp /usr/local/lib/libssh2* .
+        - sudo -H pip2 install -U delocate wheel pip setuptools
         - ls -lh
         - pip2 install --user -r requirements.txt
-        - pip2 wheel --no-deps .
       script:
+        - pip2 wheel --no-deps .
         - delocate-listdeps --all *.whl
         - delocate-wheel -v *.whl
         - delocate-listdeps --all *.whl
@@ -98,72 +76,55 @@ jobs:
         - pwd; mkdir temp; cd temp; pwd
         - python -c "import pssh.clients"
         - cd ..; pwd
+        - mv -f *.whl wheels/
+        - ./ci/travis/pyenv-wheel.sh
       after_success:
         - if [[ ! -z "$TRAVIS_TAG" ]]; then
-              twine upload -u $PYPI_U -p $PYPI_P *.whl;
+              twine upload --skip-existing -u $PYPI_U -p $PYPI_P wheels/*.whl;
           fi
       language: generic
       python: skip
 
-    - stage: build packages
-      os: osx
+    - <<: *osx-wheels
+      osx_image: xcode6.4
+
+    - <<: *osx-wheels
+      osx_image: xcode6.4
+      env:
+        - PYENV: 3.7.0
+      install: skip
+      script:
+        - ./ci/travis/pyenv-wheel.sh
+
+    - <<: *osx-wheels
+      osx_image: xcode8.3
+
+    - <<: *osx-wheels
+      osx_image: xcode9.3
+
+    - <<: *osx-wheels
       osx_image: xcode8
-      before_install:
-        - brew update
-      install:
-        - brew upgrade openssl
-        - sudo ci/install-ssh2.sh
-        - sudo rm -f libssh2.1.dylib
-        - sudo pip2 install -U delocate twine wheel pip setuptools
-        - cp /usr/local/lib/libssh2* .
-        - pip2 install --user -r requirements.txt
-        - pip2 wheel --no-deps .
+      env:
+        - PYENV: 3.7.0
+      install: skip
       script:
-        - delocate-listdeps --all *.whl
-        - delocate-wheel -v *.whl
-        - delocate-listdeps --all *.whl
-        - ls -l *.whl
-        - rm -f *.dylib
-        - pip2 install --user -v *.whl
-        - pwd; mkdir temp; cd temp; pwd
-        - python -c "import pssh.clients"
-        - cd ..; pwd
-      after_success:
-        - if [[ ! -z "$TRAVIS_TAG" ]]; then
-              twine upload -u $PYPI_U -p $PYPI_P *.whl;
-          fi
-      language: generic
-      python: skip
+        - ./ci/travis/pyenv-wheel.sh
 
-    - stage: build packages
-      os: osx
+    - <<: *osx-wheels
+      osx_image: xcode8.3
+      env:
+        - PYENV: 3.7.0
+      install: skip
+      script:
+        - ./ci/travis/pyenv-wheel.sh
+
+    - <<: *osx-wheels
       osx_image: xcode9.3
-      before_install:
-        - brew update
-      install:
-        - brew upgrade openssl
-        - sudo ci/install-ssh2.sh
-        - sudo -H pip2 install -U delocate twine wheel pip setuptools
-        - cp /usr/local/lib/libssh2* .
-        - ls -lh
-        - pip2 install --user -r requirements.txt
-        - pip2 wheel --no-deps .
+      env:
+        - PYENV: 3.7.0
+      install: skip
       script:
-        - delocate-listdeps --all *.whl
-        - delocate-wheel -v *.whl
-        - delocate-listdeps --all *.whl
-        - ls -l *.whl
-        - rm -f *.dylib
-        - pip2 install --user -v *.whl
-        - pwd; mkdir temp; cd temp; pwd
-        - python -c "import pssh.clients"
-        - cd ..; pwd
-      after_success:
-        - if [[ ! -z "$TRAVIS_TAG" ]]; then
-              twine upload -u $PYPI_U -p $PYPI_P *.whl;
-          fi
-      language: generic
-      python: skip
+        - ./ci/travis/pyenv-wheel.sh
 
     - os: linux
       stage: build packages
@@ -190,6 +151,7 @@ jobs:
     - stage: build packages
       env:
         - WHEELS=1
+        - OPENSSL=openssl-1.0.2o
       os: linux
       python: 3.6
       before_install: skip
@@ -200,7 +162,7 @@ jobs:
           ./ci/travis/build-manylinux.sh;
       after_success:
         - if [[ ! -z "$TRAVIS_TAG" ]]; then
-            twine upload -u $PYPI_U -p $PYPI_P wheelhouse/*.whl;
+            twine upload --skip-existing -u $PYPI_U -p $PYPI_P wheelhouse/*.whl;
           fi
       deploy:
         - provider: pypi

ci/docker/manylinux/Dockerfile

@@ -1,7 +1,7 @@
 FROM quay.io/pypa/manylinux1_x86_64
 
 ENV CMAKE cmake-2.8.11.1-5.4.x86_64
-ENV OPENSSL openssl-1.0.2l
+ENV OPENSSL openssl-1.0.2o
 ENV LIBSSH2_VER agent_fwd
 
 RUN yum install zlib-devel -y

ci/travis/build-wheels.sh

@@ -1,8 +1,7 @@
 #!/bin/bash -xe
 
 # Compile wheels
-for PYBIN in `ls -1d /opt/python/*/bin | grep -v cpython | grep -v cp37`; do
-    "${PYBIN}/pip" install gevent==1.1
+for PYBIN in `ls -1d /opt/python/cp*/bin`; do
     "${PYBIN}/pip" install -r /io/requirements.txt
     "${PYBIN}/pip" wheel --no-deps /io/ -w wheelhouse/
 done
@@ -13,7 +12,7 @@ for whl in wheelhouse/*.whl; do
 done
 
 # Install packages and test
-for PYBIN in `ls -1d /opt/python/*/bin | grep -v cpython | grep -v cp37`; do
+for PYBIN in `ls -1d /opt/python/cp*/bin`; do
     "${PYBIN}/pip" install parallel-ssh --no-index -f /io/wheelhouse
     (cd "$HOME"; "${PYBIN}/python" -c 'import pssh.native._ssh2')
 done

ci/travis/pyenv-wheel.sh

@@ -0,0 +1,45 @@
+#!/bin/bash -xe
+
+brew install pyenv || brew outdated pyenv || brew upgrade pyenv
+
+export PYENV_VERSION=${PYENV:-3.6.4}
+if [[ ! -d "$HOME/.pyenv/versions/$PYENV_VERSION" ]]; then
+    pyenv install $PYENV_VERSION
+fi
+pyenv global $PYENV_VERSION
+pyenv versions
+
+set +x
+eval "$(pyenv init -)"
+set -x
+
+which python
+python -m pip install -U virtualenv
+python -m virtualenv -p "$(which python)" venv
+
+set +x
+source venv/bin/activate
+set -x
+
+python -V
+python -m pip install -U setuptools pip
+pip install -U delocate wheel
+pip install -r requirements.txt
+pip wheel --no-deps .
+cp /usr/local/lib/libssh2* .
+delocate-listdeps --all *.whl
+delocate-wheel -v *.whl
+delocate-listdeps --all *.whl
+
+ls -l *.whl
+rm -f *.dylib
+pip install -v *.whl
+pwd; mkdir -p temp; cd temp; pwd
+python -c "import pssh.clients" && echo "Import successfull"
+cd ..; pwd
+set +x
+deactivate
+set -x
+
+mv -f *.whl wheels/
+ls -lh wheels/

pssh/clients/native/single.py

@@ -398,6 +398,8 @@ def run_command(self, command, sudo=False, user=None,
         :param encoding: Encoding to use for output. Must be valid
           `Python codec <https://docs.python.org/2.7/library/codecs.html>`_
         :type encoding: str
+
+        :rtype: (channel, host, stdout, stderr, stdin) tuple.
         """
         # Fast path for no command substitution needed
         if not sudo and not user and not shell:

setup.py

@@ -98,20 +98,27 @@
       ),
       install_requires=['paramiko', gevent_req, 'ssh2-python>=0.15.0'],
       classifiers=[
-        'License :: OSI Approved :: GNU Lesser General Public License v2 (LGPLv2)',
-        'Intended Audience :: Developers',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.6',
-        'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 3.6',
-        'Topic :: Software Development :: Libraries :: Python Modules',
-        'Operating System :: POSIX :: Linux',
-        'Operating System :: POSIX :: BSD',
-        'Operating System :: Microsoft :: Windows',
-        ],
+          'Development Status :: 5 - Production/Stable',
+          'License :: OSI Approved :: GNU Lesser General Public License v2 (LGPLv2)',
+          'Intended Audience :: Developers',
+          'Operating System :: OS Independent',
+          'Programming Language :: C',
+          'Programming Language :: Python :: 2',
+          'Programming Language :: Python :: 2.6',
+          'Programming Language :: Python :: 2.7',
+          'Programming Language :: Python :: 3',
+          'Programming Language :: Python :: 3.4',
+          'Programming Language :: Python :: 3.5',
+          'Programming Language :: Python :: 3.6',
+          'Programming Language :: Python :: 3.7',
+          'Topic :: System :: Networking',
+          'Topic :: Software Development :: Libraries',
+          'Topic :: Software Development :: Libraries :: Python Modules',
+          'Operating System :: POSIX :: Linux',
+          'Operating System :: POSIX :: BSD',
+          'Operating System :: Microsoft :: Windows',
+          'Operating System :: MacOS :: MacOS X',
+      ],
       ext_modules=extensions,
       package_data=package_data,
 )