Clean up Python dependencies

- Specify supported Python versions using ``python_requires`` in setup.py
- Added support for Python 3.8 (Travis allows test failures, waiting
  for a fixed Zope release)

.travis.yml

@@ -8,7 +8,9 @@ matrix:
     include:
         - python: "3.7"
           dist: xenial
-          sudo: true
+    allow_failures:
+        - python: "3.8-dev"
+          dist: xenial
 install:
     - pip install -U coverage coveralls
     - pip install zc.buildout

CHANGES.rst

@@ -4,7 +4,9 @@ Changelog
 2.0b6 (unreleased)
 ------------------
 
-- Nothing changed yet.
+- Specify supported Python versions using ``python_requires`` in setup.py
+
+- Adding suport for Python 3.8
 
 
 2.0b5 (2018-12-14)

setup.py

@@ -39,6 +39,7 @@ def _package_doc(name):
         "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: Implementation :: CPython",
         "Topic :: Software Development",
         "Topic :: System :: Archiving :: Packaging",
@@ -58,6 +59,7 @@ def _package_doc(name):
     include_package_data=True,
     namespace_packages=['Products'],
     zip_safe=False,
+    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*',
     setup_requires=['eggtestinfo',
                     ],
     install_requires=[
@@ -67,6 +69,7 @@ def _package_doc(name):
         'zope.interface >= 3.8',
         'five.localsitemanager',
         'Products.PythonScripts',
+        'Products.ZCTextIndex',
         'Products.ZCatalog',
     ],
     tests_require=[

tox.ini

@@ -5,6 +5,7 @@ envlist =
    py35,
    py36,
    py37,
+   py38,
    flake8,
    coverage,
    docs,
@@ -24,7 +25,7 @@ setenv =
     COVERAGE_FILE=.coverage.{envname}
 
 [testenv:coverage]
-basepython = python2.7
+basepython = python3.6
 deps = coverage
 setenv =
     COVERAGE_FILE=.coverage
@@ -36,7 +37,7 @@ commands =
     coverage report
 
 [testenv:flake8]
-basepython = python2.7
+basepython = python3.6
 deps =
     flake8
     flake8-html
@@ -49,7 +50,7 @@ commands =
 
 [testenv:docs]
 basepython =
-    python2.7
+    python3.6
 pip_pre = True
 commands =
     sphinx-build -b html -d docs/_build/doctrees docs docs/_build/html