ESPN Fantasy Football Power Rankings

Currently using this module to do most of the heavy lifting: https://github.com/cwendt94/espn-api

Pull ESPN Fantasy Football league info, generate standings and power rankings, format it into crude HTML, and ship it out via email to a list of email addresses (using yagmail module)

Output email is pre-formatted with power rankings list including rank, team name, owner name, current record, and total season points scored. Below each team is a table that contains:

• Dominance score (more info below)
• Standings position (and previous position if we're past week 1)
• Season points, points against, and differential
• Previous game info including result, score, bench points, opponent, and opponent points
• Breakdown of best and worst performing players from last week's game
• List of any "goose eggs" - starting players who scored 0 or less points
• List of any "outstanding benchwarmers" - bench players that scored 25+ points AND outscored a starter in a position they could have played in
• Information about the next opponent (unless the season is over)

Output email also includes a small header section with highest and lowest scoring teams as well as info about best and worst performing players as well as the teams they are on

Dominance scores

Dominance scores are calculated using the league.power_rankings() function provided by the espn-api module. The dominance score is calculated as follows:

1. a 2-step dominance matrix function is run across all matchups for the entire league
2. The output of that function for each team is multiplied by 0.8
3. Total season points for each team is multiplied by 0.15
4. Average margin of victory for each team is multiplied by 0.05
5. Those three values are added together to create the dominance score for a given team

Required modules

This script requires the following modules to be installed:

ESPN-API: https://github.com/cwendt94/espn-api - pip install espn-api
YagMail: https://pypi.org/project/yagmail/ - pip install yagmail

User-provided variables

The following information needs to be provided in order to run this script:

• _ESPN_LEAGUE_ID: found in the URL of your fantasy team
  • https://fantasy.espn.com/football/team?leagueId=XXXXXXX&teamId=XX&seasonId=2020
• _ESPN_S2: used for authentication for private leagues - more info below
• _ESPN_SWID: used for authentication for private leagues - more info below
• _EMAIL_TO: a comma-separated list of email addresses to send the power rankings to
• _EMAIL_FROM: the email address used to send the email. Yagmail is built to use GMail by default
• _EMAIL_PASS: password for the _EMAIL_FROM account. If using a GMail account with 2-factor auth enabled you will need to generate an application password

These variables are currently passed in as environment variables to avoid defining them in source code

ESPN S2 and SWID

Authenticating against the ESPN API using username and password is currently broken. Authentication must now be done using two cookies called espn_s2 and SWID. The values for these two cookies can be found in Chrome DevTools (F12) under Applications -> Storage -> Cookies -> https://www.espn.com when logged into ESPN.com