Introduction to Boto3

Length: 00:13:01

Lesson Summary:

Boto3 is the AWS SDK for Python. It enables Python developers to create, configure, and manage AWS services, such as EC2 and S3. Boto provides an easy-to-use, object-oriented API, as well as low-level access to AWS services.

Installing the AWS CLI and Boto3

Amazon Linux 2

The AWS CLI is already installed on Amazon Linux 2.

Install Python 3:

sudo yum install -y python3-pip python3 python3-setuptools

Install Boto3:

pip3 install boto3 --user

macOS

Install Python3 using Homebrew:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Install Python 3:

brew install python

Insert the Homebrew Python directory at the top of your PATH environment variable:

export PATH="/usr/local/opt/python/libexec/bin:$PATH"

Verify you are using Python 3:

python --version

Install the AWS CLI and Boto3:

pip install awscli boto3 --upgrade --user

The --upgrade option tells pip to upgrade any requirements that are already installed. The --user option tells pip to install the program to a subdirectory of your user directory to avoid modifying libraries used by your operating system.

You may need to add the user directory to your PATH, for example, ~/Library/Python/3.7/bin.

Run the following command at the terminal, and add it to your .bashrc, .zshrc, or other shell configuration file:

export PATH=~/Library/Python/3.7/bin:$PATH

Configuring your AWS environment

Obtain your AWS access key and secret access key from the AWS Management Console. Run the following command:

aws configure

This sets up a text file that the AWS CLI and Boto3 libraries look at by default for your credentials: ~/.aws/credentials.

The file should look like this:

[default]
aws_access_key_id = AKIAIOSFODNN7EXAMPLE
aws_secret_access_key = wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY

Test Your Credentials

AWS CLI

Run the following command:

aws sts get-caller-identity

The output should look like this:

{
    "UserId": "AIDAJKLMNOPQRSTUVWXYZ",
    "Account": "123456789012",
    "Arn": "arn:aws:iam::123456789012:user/devuser"
}

Boto3

Run python3 interactively:

python3

Run the following commands:

>>> import boto3
>>> sts = boto3.client('sts')
>>> sts.get_caller_identity()

The output should look like this:

{'UserId': 'AIDAJKLMNOPQRSTUVWXYZ', 'Account': '123456789012', 'Arn': 'arn:aws:iam::123456789012:user/devuser', 'ResponseMetadata': {'RequestId': '3e310806-50c9-11e9-93ae-dbac86675630', 'HTTPStatusCode': 200, 'HTTPHeaders': {'x-amzn-requestid': '3e310806-50c9-11e9-93ae-dbac86675630', 'content-type': 'text/xml', 'content-length': '404', 'date': 'Wed, 27 Mar 2019 19:48:06 GMT'}, 'RetryAttempts': 0}}

Quit using exit() or Ctrl+D:

>>> exit()

Resources


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