another_redzone_example.py

import nfldb
db = nfldb.connect()
q = nfldb.Query(db)

team = 'MIN'

def redzone(field):
    cutoff = nfldb.FieldPosition.from_str(field)
    return lambda play: play.yardline >= cutoff

q.game(season_year=2015, week=7, team=team)
plays = filter(redzone('OPP 20'), q.as_plays())
print 'Total redzone plays: {}'.format(len(plays))

q.game(season_year=2015, week=7, team=team)
q.play(pos_team=team)                                           # This is what tosses out the "defensive" redzone plays
plays = filter(redzone('OPP 20'), q.as_plays())
print 'Redzone plays for only {}: {}'.format(team, len(plays))

Total redzone plays: 31
Redzone plays for only MIN: 19