prediction-loc

Setup

• Ensure you have Python 3 installed.

• Install helper software:

  • Mac Users:
    1. Install Homebrew according to instructions at https://brew.sh
    2. Install Pipenv with brew install pipenv
  • Windows users:
    1. Install Pipenv with pip3 install --user pipenv

• Install the necessary libraries:
  pipenv install

• Install and setup AWS authentication with awscli:
  pip3 install --user awscli
aws configure
  Enter "Access Key ID" and "Secret Access Key" provided by an AWS administrator

• Ensure certificates are set up.
  If you're using macOS go to Macintosh HD > Applications > Python folder > double click on "Install Certificates.command" file.

• Configure
  export S3_BUCKET_NAME=bucket-name
  Bucket name is shared on LastPass

Usage

pipenv run python3 getArchive.py --datetime [YYYY-MM-DDTHH:mm] --output [output file location]

Optional arguments

Argument	Description
--stop [stop id]	Use to only include trip_updates affecting the given stop_id
--route [route id]	Use to only include trip_updates affecting the given route
--feed [name]	Feed to retrieve. Accepted values: bus (default), subway, cr
--raw	Download the file as a raw protobuf instead of human-readable text

Troubleshooting

If the aws command cannot be found, you will need to add it to your PATH:

1. Find the location of the install by running the command python3 -c 'import awscli; print(awscli)'

• It should print something similar to <module 'awscli' from '/Users/localuser/Library/Python/3.6/lib/python/site-packages/awscli/__init__.py'\>

2. Cut off the end of the filepath, starting with lib, and add /bin to get a path that looks like /Users/localuser/Library/Python/3.6/bin
3. Add that to your PATH by opening (or creating) ~/.bash_profile and adding export PATH=$PATH:/Users/localuser/Library/Python/3.6/bin (using the path you created in step 2)
4. Open a new terminal window or run source ~/.bash_profile to apply your changes