Add support for Python 3.7.

.travis.yml

@@ -1,13 +1,17 @@
-sudo: false
 language: python
 python:
     - 2.7
     - 3.4
     - 3.5
     - 3.6
-install:
+matrix:
+    include:
+        - python: "3.7"
+          dist: xenial
+before_install:
     - pip install -U pip setuptools
     - pip install -U coverage coveralls zope.testrunner
+install:
     - pip install -U -e .[test]
 script:
     - coverage run -m zope.testrunner --test-path=src

CHANGES.rst

@@ -5,6 +5,8 @@ Changelog
 4.1 (unreleased)
 ----------------
 
+- Add support for Python 3.7.
+
 - Deal with items with same name but different values in ordered field widget.
   [rodfersou]
 

setup.py

@@ -66,6 +66,7 @@ def alltests():
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: Implementation :: CPython',
         'Natural Language :: English',
         'Operating System :: OS Independent',

src/z3c/form/converter.rst

@@ -400,8 +400,9 @@ Dates are simply converted to ISO format:
 The converter only knows how to convert this particular format back to a
 datetime value:
 
-  >>> tddc.toFieldValue(u'1 day, 1:01:01')
-  datetime.timedelta(1, 3661)
+  >>> fv = tddc.toFieldValue(u'1 day, 1:01:01')
+  >>> (fv.days, fv.seconds)
+  (1, 3661)
 
 If no day is available, the following short form is used:
 
@@ -411,8 +412,9 @@ If no day is available, the following short form is used:
 
 And now back to the field value:
 
-  >>> tddc.toFieldValue(u'1:01:01')
-  datetime.timedelta(0, 3661)
+  >>> fv = tddc.toFieldValue(u'1:01:01')
+  >>> (fv.days, fv.seconds)
+  (0, 3661)
 
 By default the converter converts missing input to missin_input value:
 

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py27,py34,py35,py36,coverage,docs
+    py27,py34,py35,py36,py37,coverage,docs
 
 [testenv]
 commands =