Updated tox file and changed Travis CI to use tox

.travis.yml

@@ -3,24 +3,24 @@ dist: xenial
 matrix:
     include:
         - python: 2.7
+          env: TOXENV=py27
         - python: 3.5
+          env: TOXENV=py35
         - python: 3.6
+          env: TOXENV=py36
         - python: 3.7
+          env: TOXENV=py37
         - python: 3.8-dev
+          env: TOXENV=py38
         - name: "Linting"
           python: 3.7
-          env: TARGET=lint-ci
+          env: TOXENV=lint
           cache:
               directories:
                   - $HOME/.cache/pre-commit
     allow_failures:
         - python: 3.8-dev
-before_install: pip install -U codecov
-install:
-    - if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then make build27; fi
-    - if [[ $TRAVIS_PYTHON_VERSION == '3.5' ]]; then make build35; fi
-    - if [[ $TRAVIS_PYTHON_VERSION == '3.6' ]]; then make build36; fi
-    - if [[ $TRAVIS_PYTHON_VERSION == '3.7' ]]; then make build37; fi
-    - if [[ $TRAVIS_PYTHON_VERSION == '3.8-dev' ]]; then make build38; fi
-script: make "${TARGET:-test}"
+          env: TOXENV=py38
+install: pip install -U codecov tox
+script: tox --recreate
 after_success: codecov

Makefile

@@ -2,28 +2,14 @@
 
 auto: build27
 
-build27:
-	virtualenv local --python=python2.7
-	local/bin/pip install -r requirements.txt
-	local/bin/pre-commit install
-
-build35:
-	virtualenv local --python=python3.5
-	local/bin/pip install -r requirements.txt
-	local/bin/pre-commit install
-
-build36:
-	virtualenv local --python=python3.6
-	local/bin/pip install -r requirements.txt
-	local/bin/pre-commit install
-
-build37:
-	virtualenv local --python=python3.7
-	local/bin/pip install -r requirements.txt
-	local/bin/pre-commit install
-
-build38:
-	virtualenv local --python=python3.8
+build27: PYTHON_VER = python2.7
+build35: PYTHON_VER = python3.5
+build36: PYTHON_VER = python3.6
+build37: PYTHON_VER = python3.7
+build38: PYTHON_VER = python3.8
+
+build27 build35 build36 build37 build38:
+	virtualenv local --python=$(PYTHON_VER)
 	local/bin/pip install -r requirements.txt
 	local/bin/pre-commit install
 
@@ -32,15 +18,12 @@ test:
 	. local/bin/activate && nosetests
 
 lint:
-	local/bin/pre-commit run --all-files
-
-lint-ci:
 	local/bin/pre-commit run --all-files --show-diff-on-failure
 
 docs:
 	touch docs/index.rst
 	. local/bin/activate && cd docs; make html
 
 clean:
-	rm -rf local ./**/__pycache__
+	rm -rf local .tox ./**/__pycache__
 	rm -f ./**/*.pyc .coverage

setup.cfg

@@ -8,20 +8,21 @@ cover-package = arrow
 cover-erase = true
 
 [coverage:run]
-branch = True
-source =
-    arrow
-    tests
+branch = true
+source = arrow
 
 [coverage:report]
-show_missing = True
+show_missing = true
 fail_under = 100
 
 [flake8]
 per-file-ignores = arrow/__init__.py:F401
 ignore = E203,E501,W503
 
 [tool:isort]
+line_length = 88
+multi_line_output = 3
+include_trailing_comma = true
 known_third_party = chai,dateutil,pytz,setuptools,simplejson
 
 [bdist_wheel]

setup.py

@@ -1,14 +1,24 @@
 # -*- coding: utf-8 -*-
-from setuptools import setup
+import re
 
-from arrow import __version__
+from setuptools import setup
 
 with open("README.rst", "r") as f:
     readme = f.read()
 
+with open("arrow/__init__.py", "r") as f:
+    init = f.read()
+
+
+def get_version():
+    pattern = r'{}\W*=\W*"([^"]+)"'.format("__version__")
+    strval = re.findall(pattern, init)[0]
+    return strval
+
+
 setup(
     name="arrow",
-    version=__version__,
+    version=get_version(),
     description="Better dates and times for Python",
     long_description=readme,
     long_description_content_type="text/x-rst",

tox.ini

@@ -1,20 +1,15 @@
 [tox]
-envlist = py27,py35,py36,py37
-skip_missing_interpreters = True
-
-[common]
-deps =
-    nose
-    nose-cov
-    simplejson
+envlist = py27,py35,py36,py37,py38,lint
+skip_missing_interpreters = true
 
 [testenv]
-deps =
-    {[common]deps}
-    chai
-commands = nosetests --all-modules --with-coverage arrow tests
+deps = -rrequirements.txt
+commands =
+    nosetests
+    pre-commit install
 
-[testenv:py26]
-deps =
-    {[common]deps}
-    chai==0.3.1
+[testenv:lint]
+basepython = python3
+skip_install = true
+deps = pre-commit
+commands = pre-commit run --all-files --show-diff-on-failure