feature: add Python 3.7 support (#204)

* update setup.py with latest version of sagemaker-training

* test against py37 and parallelize unit tests

* remove parallelization

Author: ajaykarpur

buildspec-release.yml

@@ -12,7 +12,7 @@ phases:
       # run unit tests
       - AWS_ACCESS_KEY_ID= AWS_SECRET_ACCESS_KEY= AWS_SESSION_TOKEN=
         AWS_CONTAINER_CREDENTIALS_RELATIVE_URI= AWS_DEFAULT_REGION=
-        tox -e py27,py36 -- test-toolkit/unit
+        tox -e py27,py36,py37 -- test-toolkit/unit
 
       # run local integ tests
       #- $(aws ecr get-login --no-include-email --region us-west-2)

buildspec-toolkit.yml

@@ -33,7 +33,7 @@ phases:
       - tox -e flake8,twine
 
       # run unit tests
-      - tox -e py36,py27 test-toolkit/unit
+      - tox -e py27,py36,py37 test-toolkit/unit
 
       # define tags
       - GENERIC_TAG="$FRAMEWORK_VERSION-pytorch-$BUILD_ID"

setup.py

@@ -54,11 +54,12 @@ def read(fname):
         "Programming Language :: Python",
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
     ],
 
     install_requires=[
         'retrying',
-        'sagemaker-training>=3.4.2',
+        'sagemaker-training>=3.5.0',
         'six>=1.12.0',
         'sagemaker-experiments==0.1.7;python_version>="3.6"'],
     extras_require={

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = flake8,twine,py27,py36
+envlist = flake8,twine,py27,py36,py37
 skip_missing_interpreters = False
 
 [flake8]