Add deployment stage

Author: nicoddemus

.travis.yml

@@ -10,6 +10,21 @@ jobs:
       python: '3.5'
     - env: TOXENV=py36
       python: '3.6'
+    - stage: deploy
+      python: '3.6'
+      env:
+      install: pip install -U setuptools setuptools_scm
+      script: skip
+      deploy:
+        provider: pypi
+        user: nicoddemus
+        distributions: sdist bdist_wheel
+        skip_upload_docs: true
+        password:
+          secure: TfROFljW1ne09zgKkG1s9ggPscjcghWxW/KuoScjgzXQ6OBE7QNm4keLJZxq+dxYGwbON3hoFVzCq9bU4c5eyFAT+OEN7GRa+/WFXriZIilrWXsNWF1R+EEnIyjbNgFGXRX41XxQ0GzUNB+6xr8BexqTRgBp8gFdvoKulyibVWI=
+        on:
+          tags: true
+          repo: pytest-dev/pytest-cpp
 
 install:
  - sudo apt-get update