old_contents: from __future__ import unicode_literals
  
  from django.db import models
  
  # Create your models here.
  
  
  PARTY_DEMOCRATIC = 'democratic'
  PARTY_GREEN = 'green'
  PARTY_LIBERTARIAN = 'libertarian'
  PARTY_REPUBLICAN = 'republican'
  
  PARTIES = (
      (PARTY_DEMOCRATIC, PARTY_DEMOCRATIC.title()),
      (PARTY_GREEN, PARTY_GREEN.title()),
      (PARTY_LIBERTARIAN, PARTY_LIBERTARIAN.title()),
      (PARTY_REPUBLICAN, PARTY_REPUBLICAN.title()),
  )
  
  
  CANDIDATE_CLINTON = 'clinton'
  CANDIDATE_JOHNSON = 'johnson'
  CANDIDATE_STEIN = 'stein'
  CANDIDATE_TRUMP = 'trump'
  CANDIDATE_NONE = 'none'
  CANDIDATES = (
      (CANDIDATE_CLINTON, CANDIDATE_CLINTON.title()),
      (CANDIDATE_JOHNSON, CANDIDATE_JOHNSON.title()),
      (CANDIDATE_STEIN, CANDIDATE_STEIN.title()),
      (CANDIDATE_TRUMP, CANDIDATE_TRUMP.title()),
      (CANDIDATE_NONE, "No One"),
  )
  
  CANDIDATE_TO_PARTY = {
      CANDIDATE_CLINTON: PARTY_DEMOCRATIC,
      CANDIDATE_JOHNSON: PARTY_LIBERTARIAN,
      CANDIDATE_STEIN: PARTY_GREEN,
      CANDIDATE_TRUMP: PARTY_REPUBLICAN,
  }
  
  
  class State(models.Model):
      """All states (and districts) that can vote in federal elections."""
      name = models.CharField()
      updated = models.DateField()
      abbv = models.CharField()
      tipping_point_rank = models.IntegerField()
      safe_for = models.CharField(choices=CANDIDATES, default=CANDIDATE_NONE)
      safe_rank = models.IntegerField(default=-1)
      leans = models.CharField(choices=CANDIDATES, default=CANDIDATE_NONE)
      lean_rank = models.IntegerField(default=-1)
  
      class Meta:
          unique_together = ('name', 'updated')
  
new_contents: from __future__ import unicode_literals
  
  from django.db import models
  
  # Create your models here.
  
  
  PARTY_DEMOCRATIC = 'democratic'
  PARTY_GREEN = 'green'
  PARTY_LIBERTARIAN = 'libertarian'
  PARTY_REPUBLICAN = 'republican'
  
  PARTIES = (
      (PARTY_DEMOCRATIC, PARTY_DEMOCRATIC.title()),
      (PARTY_GREEN, PARTY_GREEN.title()),
      (PARTY_LIBERTARIAN, PARTY_LIBERTARIAN.title()),
      (PARTY_REPUBLICAN, PARTY_REPUBLICAN.title()),
  )
  
  
  CANDIDATE_CLINTON = 'clinton'
  CANDIDATE_JOHNSON = 'johnson'
  CANDIDATE_STEIN = 'stein'
  CANDIDATE_TRUMP = 'trump'
  CANDIDATE_NONE = 'none'
  CANDIDATES = (
      (CANDIDATE_CLINTON, CANDIDATE_CLINTON.title()),
      (CANDIDATE_JOHNSON, CANDIDATE_JOHNSON.title()),
      (CANDIDATE_STEIN, CANDIDATE_STEIN.title()),
      (CANDIDATE_TRUMP, CANDIDATE_TRUMP.title()),
      (CANDIDATE_NONE, "No One"),
  )
  
  CANDIDATE_TO_PARTY = {
      CANDIDATE_CLINTON: PARTY_DEMOCRATIC,
      CANDIDATE_JOHNSON: PARTY_LIBERTARIAN,
      CANDIDATE_STEIN: PARTY_GREEN,
      CANDIDATE_TRUMP: PARTY_REPUBLICAN,
  }
  
  
  class State(models.Model):
      """All states (and districts) that can vote in federal elections."""
      name = models.CharField(max_length=255)
      updated = models.DateField()
      abbv = models.CharField(max_length=255)
      tipping_point_rank = models.IntegerField()
      safe_for = models.CharField(
          max_length=255, choices=CANDIDATES, default=CANDIDATE_NONE)
      safe_rank = models.IntegerField(default=-1)
      leans = models.CharField(
          max_length=255, choices=CANDIDATES, default=CANDIDATE_NONE)
      lean_rank = models.IntegerField(default=-1)
  
      class Meta:
          unique_together = ('name', 'updated')
  
subject: Add max_length to CharFields