More strict compile, remove test pypi (not working). Try build stages.

.travis.yml

@@ -13,26 +13,29 @@ install:
 script: tox
 after_success:
   - coveralls
-before_deploy:
-  - pip install -r requirements.txt
-deploy:
-  - provider: pypi
-    distributions: sdist
-    server: https://testpypi.python.org/pypi
-    user: penguinolog
-    password:
-      secure: "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"
-    on:
-      python: 3.5
-      tags: false
-    skip_upload_docs: true
-    # PyPI
-  - provider: pypi
-    distributions: sdist
-    user: penguinolog
-    password:
-      secure: "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"
-    on:
-      python: 3.5
-      tags: true
-    skip_upload_docs: true
+jobs:
+  fast_finish: true
+  include:
+  - stage: deploy
+    python: 3.6
+    before_install:
+    # This must prevent further job progress
+    - |
+      if [ -z "$TRAVIS_TAG" ]
+      then
+        echo Not building wheels
+        exit 0
+      fi
+    before_deploy:
+      - pip install -r build_requirements.txt
+    deploy:
+    - provider: pypi
+      distributions: sdist
+      user: penguinolog
+      password:
+        secure: "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"
+      on:
+        python: 3.6
+        tags: true
+      skip_upload_docs: true
+      skip_cleanup: true

setup.py

@@ -70,6 +70,8 @@ def _extension(modpath):
         always_allow_keywords=True,
         binding=True,
         embedsignature=True,
+        overflowcheck=True,
+        language_level=3,
     )
 ) if cythonize is not None and PY3 else []