Mailchimp merge

Usage:

pip install -r requirements.txt  # Install requirements
export MAILCHIMP_KEY="..."       # Your mailchimp api key
export MAILCHIMP_DATACENTER=us7  # Your mailchimp datacenter id
python main.py > output.csv      # output.csv contains your merged list

Outputs a tab-delimited list of the form:

Email Address	First Name	Last Name	Phone Number	Original list ID
test@example.com	James	Brown	+1 1235556789	abcdefg

...etc.