Fix travis not pushing releases properly

Author: Hugo Osvaldo Barrera

.travis.yml

@@ -4,6 +4,11 @@ cache: pip
 
 python: 3.6
 
+stages:
+  - test
+  - name: deploy
+    if: tag IS present
+
 install:
   - pip install flake8 flake8-import-order
 
@@ -14,18 +19,16 @@ before_deploy:
   - pip install wheel
   - python setup.py sdist bdist_wheel
 
-deploy:
-  - provider: pypi
-    user: $PYPI_USERNAME
-    password: $PYPI_PASSWORD
-    on:
-      tags: true
-    distributions: "sdist bdist_wheel"
-  - provider: releases
-    api_key: $GITHUB_OAUTH_TOKEN
-    file_glob: true
-    file: dist/*
-    skip_cleanup: true
-    on:
-      tags: true
-    distributions: "sdist bdist_wheel"
+jobs:
+  include:
+    - stage: deploy
+      script:
+        - pip install wheel twine
+        - python setup.py sdist bdist_wheel
+        - twine upload -u $PYPI_USERNAME -p $PYPI_PASSWORD dist/*
+    - stage: deploy
+      script:
+        - pip install wheel
+        - python setup.py sdist bdist_wheel
+        - gem install dpl
+        - dpl --api-key=$GITHUB_OAUTH_TOKEN --provider=releases --file=dist/* --file_glob=true --skip_cleanup=true