niranjv

# Use `ls` to view package contents
# Ref
# - https://stackoverflow.com/questions/12575098/to-see-all-the-content-not-just-objects-in-a-package-in-r

# Example for ISLR package, assuming it is installed
ls(pos="package:ISLR")

# To view only datasets in a package (results will open in a new tab):
data(package="ISLR")

niranjv

# Create and upload a deployment package for a Python Lambda function
# Assumes EC2 instance is associated with an IAM role with permissions to access S3 & Lambda
# Ref: http://docs.aws.amazon.com/lambda/latest/dg/lambda-python-how-to-create-deployment-package.html
 
# This script is meant to be used after virtualenv has been setup to connect to Oracle RDS 
# see https://gist.github.com/niranjv/2a576a13afe1b323e9e9600ed7de03ef


# Steps:
# - create temp dir

niranjv

# This script allows Python functions in AWS Lambda to query an Oracle RDS instance
# It is meant to run on an EC2 instance running Amazon Linux

# The script has been tested successfully on a t2.micro EC2 instance (Root device type: ebs; Virtualization type: hvm)
# running Amazon Linux AMI 2017.03.0 (HVM), SSD Volume Type - ami-c58c1dd3
# and was developed with the help of AWS Support

# Steps:
# - install Oracle Instant Client
# - create virtualenv

niranjv

# A virtualenv running Python3.6 on Amazon Linux/EC2 (approximately) simulates the Python 3.6 Docker container used by Lambda
# and can be used for developing/testing Python 3.6 Lambda functions
# This script installs Python 3.6 on an EC2 instance running Amazon Linux and creates a virtualenv running this version of Python
# This is required because Amazon Linux does not come with Python 3.6 pre-installed 
# and several packages available in Amazon Linux are not available in the Lambda Python 3.6 runtime

# The script has been tested successfully on a t2.micro EC2 instance (Root device type: ebs; Virtualization type: hvm)
# running Amazon Linux AMI 2017.03.0 (HVM), SSD Volume Type - ami-c58c1dd3
# and was developed with the help of AWS Support

niranjv

# Python logger in AWS Lambda has a preset format. To change the format of the logging statement, 
# remove the logging handler & add a new handler with the required format

import logging
import sys

def setup_logging():
    logger = logging.getLogger()
    for h in logger.handlers:
      logger.removeHandler(h)