Split tests into different builds on Travis. Drop Python 3.4 support (#…

…125)

* Split tests into different builds on Travis
* Remove Python 3.4 support from setup.py

.travis.yml

@@ -2,7 +2,6 @@ dist: xenial
 
 language: python
 python:
-  - 3.4
   - 3.5
   - 3.6
   - 3.7
@@ -16,18 +15,9 @@ before_install:
 install:
   - pip install -r requirements-test.txt
 
-script:
-  - flake8 .
+env:
+  - RUN_CMD="flake8 . && pytest -v tests/ --cov=m2cgen/ --ignore=tests/e2e/ && coveralls"
+  - RUN_CMD="python setup.py install && rm -rfd m2cgen/ && pytest -v -m 'c or python or java or go or javascript' tests/e2e/"
+  - RUN_CMD="python setup.py install && rm -rfd m2cgen/ && pytest -v -m 'c_sharp or visual_basic' tests/e2e/"
 
-  # Since we develop a library, we want to make sure that it properly runs
-  # after installation. We already ran into an issue when some files were
-  # forgotten to be included in package_data and it was not caught by tests.
-
-  # So first we run unit tests against raw source code and report coverage.
-  - pytest -v tests/ --cov=m2cgen/ --ignore=tests/e2e/
-  - coveralls
-
-  # Then we install it as a library, remove source code and run e2e tests.
-  - python setup.py install
-  - rm -rfd m2cgen/
-  - pytest -v tests/e2e/
+script: "eval $RUN_CMD"

README.md

@@ -17,7 +17,7 @@
 * [FAQ](#faq)
 
 ## Installation
-Supported Python version is >= **3.4**.
+Supported Python version is >= **3.5**.
 ```
 pip install m2cgen
 ```

setup.py

@@ -25,14 +25,13 @@
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.4",
         "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: Implementation :: CPython",
     ],
     keywords="sklearn ml code-generation",
-    python_requires=">=3.4",
+    python_requires=">=3.5",
     install_requires=[
         "numpy",
         "scipy",