Add Python Version Input Option for EC2 #84

Job	Run time
asg / python-ec2-asg	24s
pypi / python-ec2-default-attempt-1 / python-ec2-default	29s
github-3-8 (us-east-1) / python-ec2-default-attempt-1 / python-ec2-default	21s
github-3-11 (us-east-1) / python-ec2-default-attempt-1 / python-ec2-default	22s
github-3-12 (us-east-1) / python-ec2-default-attempt-1 / python-ec2-default	37s
github-3-10 (us-east-1) / python-ec2-default-attempt-1 / python-ec2-default	21s
github-3-9 (us-east-1) / python-ec2-default-attempt-1 / python-ec2-default	27s
github-3-10 (us-east-1) / python-ec2-default-attempt-2	1s
github-3-10 (us-east-1) / publish-metric-attempt-1 / publish-result	7s
github-3-8 (us-east-1) / python-ec2-default-attempt-2	1s
github-3-11 (us-east-1) / python-ec2-default-attempt-2	1s
github-3-8 (us-east-1) / publish-metric-attempt-1 / publish-result	12s
github-3-11 (us-east-1) / publish-metric-attempt-1 / publish-result	9s
github-3-9 (us-east-1) / python-ec2-default-attempt-2	1s
github-3-9 (us-east-1) / publish-metric-attempt-1 / publish-result	7s
pypi / python-ec2-default-attempt-2	1s
pypi / publish-metric-attempt-1 / publish-result	8s
github-3-10 (us-east-1) / publish-metric-attempt-2	1s
github-3-12 (us-east-1) / python-ec2-default-attempt-2	1s
github-3-12 (us-east-1) / publish-metric-attempt-1 / publish-result	10s
github-3-9 (us-east-1) / publish-metric-attempt-2	1s
github-3-11 (us-east-1) / publish-metric-attempt-2	1s
pypi / publish-metric-attempt-2	1s
github-3-8 (us-east-1) / publish-metric-attempt-2	1s
github-3-12 (us-east-1) / publish-metric-attempt-2	1s
	4m 6s

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