change: upgrade boto3 and remove python-dateutil pin (#1229)

Author: laurenyu

setup.py

@@ -34,7 +34,7 @@ def read_version():
 
 # Declare minimal set for installation
 required_packages = [
-    "boto3>=1.10.32",
+    "boto3>=1.10.44",
     "numpy>=1.9.0",
     "protobuf>=3.1",
     "scipy>=0.19.0",

tox.ini

@@ -57,10 +57,7 @@ passenv =
 
 # {posargs} can be passed in by additional arguments specified when invoking tox.
 # Can be used to specify which tests to run, e.g.: tox -- -s
-# TODO: Remove pip install python-dateutil==2.8.0 once botocore no longer requires a pinned version:
-# https://github.com/boto/botocore/issues/1872
 commands =
-    pip install python-dateutil==2.8.0
     coverage run --source sagemaker -m pytest {posargs}
     {env:IGNORE_COVERAGE:} coverage report --fail-under=84 --omit */tensorflow/tensorflow_serving/*
 extras = test