Add tox.ini

tox is a nice tool to run tests: it creates virtual environments,
install test dependencies and run tests. With the simple command
"tox", tests are run on Python 2 and Python 3.

* Create tox.ini based on .travis.yml
* Modidy .travis.yml to use tox-travis:
  https://github.com/ryanhiebert/tox-travis
* .gitignore: ignore .tox/ sub-directory created by tox.

3 files changed, 20 insertions, 4 deletions

diff --git a/.gitignore b/.gitignore
index 17db388..3f925d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ html_coverage
 .hgignore
 .idea
 *.iml
+.tox/
diff --git a/.travis.yml b/.travis.yml
index 2f9b500..65a02f6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,5 @@ python:
 matrix:
   allow_failures:
     - python: "nightly"
-install:
-  - python setup.py develop
-  - pip install webob webtest coverage
-script: python -bb $(which nosetests)
+install: pip install tox-travis
+script: tox
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..2c2419f
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,17 @@
+[tox]
+envlist = py26,py27,py33,py34,pypy,pypy3
+
+[testenv]
+deps=
+    coverage
+    nose
+    webob
+    webtest
+commands=
+    python -bb -m nose tests {posargs}
+
+[testenv:py26]
+# Ony Python 2.6, python -m test doesn't work. Anyway, python -bb is only
+# interested on Python 3.
+commands=
+    nosetests tests {posargs}