update travis conf + codecov

.travis.yml

@@ -11,14 +11,52 @@ jobs:
     - python: 3.8
     - python: "pypy"
     - python: "pypy3"
+# OSX
+    - name: OSX Python 2.7
+      os: osx
+      language: shell
+      before_install:
+        - cp -fv `which python2` `which python` || true
+        - cp -fv `which pip2` `which pip` || true
+        - pip install --upgrade pip
+    - name: OSX Python 3.7
+      os: osx
+      language: shell
+      before_install:
+        - cp -fv `which python3` `which python` || true
+        - cp -fv `which pip3` `which pip` || true
+        - pip install --upgrade pip
+# Windows
+    - name: Win Python 3.6
+      language: shell
+      os: windows
+      before_install:
+        - choco install python --version 3.6.8
+        - python -m pip install --upgrade pip
+      env: PATH=/c/Python36:/c/Python36/Scripts:$PATH
+    - name: Win Python 3.7
+      language: shell
+      os: windows
+      before_install:
+        - choco install python --version 3.7.4
+        - python -m pip install --upgrade pip
+      env: PATH=/c/Python37:/c/Python37/Scripts:$PATH
+    - name: Win Python 3.8
+      language: shell
+      os: windows
+      before_install:
+        - choco install python --version 3.8.2
+        - python -m pip install --upgrade pip
+      env: PATH=/c/Python38:/c/Python38/Scripts:$PATH
+
 install:
-    - pip install -r requirements.txt
+    - pip install mock pytest==3.2.1 pytest-cov==2.5.1
+    - pip install codecov
     - pip install coveralls
     - pip install scrutinizer-ocular
-before_script:
-    - rm -f .coverage vdf/*.pyc tests/*.pyc
 script:
-    - PYTHONHASHSEED=0 python -m pytest --cov=vdf tests
+    - PYTHONHASHSEED=0 pytest --cov=vdf tests
 after_success:
+    - codecov
     - coveralls
     - ocular --data-file ".coverage"