Add python 3.7to Travis, change python_requirement in setup.py.

Author: ahn1340

.travis.yml

@@ -19,7 +19,8 @@ matrix:
     env: DISTRIB="conda" PYTHON_VERSION="3.6" MINICONDA_URL="https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh"
   - os: linux
     env: DISTRIB="conda" PYTHON_VERSION="3.6" EXAMPLES="true" MINICONDA_URL="https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh"
-    # Add flake8 check in travis.
+  - os: linux
+    env: DISTRIB="conda" PYTHON_VERSION="3.7" MINICONDA_URL="https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh"
   - os: linux
     env: DISTRIB="conda" PYTHON_VERSION="3.6" RUN_FLAKE8="true" SKIP_TESTS="true" MINICONDA_URL="https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh"
 
@@ -70,7 +71,6 @@ install:
   - pip install git+https://github.com/openml/openml-python@0b9009b0436fda77d9f7c701bd116aff4158d5e1 --no-deps
   - mkdir ~/.openml
   - echo "apikey = 610344db6388d9ba34f6db45a3cf71de" > ~/.openml/config
-  # Install flake 8.
   - pip install flake8
   # Debug output to know all exact package versions!
   - pip freeze

setup.py

@@ -69,6 +69,6 @@
     license='BSD',
     platforms=['Linux'],
     classifiers=[],
-    python_requires='>=3.4.*',
+    python_requires='>=3.5.*',
     url='https://automl.github.io/auto-sklearn',
 )