Merge pull request #360 from mjs/py37

Python 3.7 support

.travis.yml

@@ -1,12 +1,29 @@
 dist: trusty
 language: python
-python:
-    - "2.7"
-    - "3.4"
-    - "3.5"
-    - "3.6"
-    - "pypy"
-    - "pypy3"
+
+# Python 3.7+ needs a newer version of openssl than is available in trusty,
+# so these must run on a newer platform (and since travis doesn't yet have
+# containers for xenial, those must use VMs).
+# YAML magic from https://github.com/travis-ci/travis-ci/issues/9069#issuecomment-401924248
+.mixins:
+- &xenial-mixin
+  dist: xenial
+  sudo: true
+  addons:
+    apt:
+      packages:
+        - libgnutls-dev
+
+jobs:
+  include:
+    - python: "2.7"
+    - python: "3.4"
+    - python: "3.5"
+    - python: "3.6"
+    - python: "pypy"
+    - python: "pypy3"
+    - <<: *xenial-mixin
+      python: "3.7"
 install: "python setup.py install"
 script: "python setup.py test"
 notifications:

README.rst

@@ -5,7 +5,7 @@ library.
 
 =========================  ========================================
 Current version            2.0.0
-Supported Python versions  2.7, 3.4, 3.5 and 3.6
+Supported Python versions  2.7, 3.4 - 3.7
 License                    New BSD
 Project home               https://github.com/mjs/imapclient/
 PyPI                       https://pypi.python.org/pypi/IMAPClient

doc/src/index.rst

@@ -30,7 +30,7 @@ explains IMAP in detail. Other RFCs also apply to various extensions
 to the base protocol. These are referred to in the documentation below
 where relevant.
 
-Python versions 2.7, 3.4, 3.5 and 3.6 are officially supported.
+Python versions 2.7 and 3.4 through 3.7 are officially supported.
 
 Getting Started
 ---------------

setup.py

@@ -33,7 +33,7 @@
     * Convenience methods are provided for commonly used functionality.
     * Exceptions are raised when errors occur.
 
-Python versions 2.7, 3.4, 3.5 and 3.6 are officially supported.
+Python versions 2.7 and 3.4 through 3.7 are officially supported.
 
 IMAPClient includes comprehensive units tests and automated
 functional tests that can be run against a live IMAP server.