DATA YOUR TURN #1

with open('Countries.csv') as f:
    rows = csv.DictReader(f)
    for r in rows:
        if r['coastline'] == 'yes' and r['EU'] == 'no':
            print(r['country'], r['population'])

DATA YOUR TURN #2

for city in cities:
    for country in countries:
        if city['country'] == country['country']:
            if country['EU'] == 'yes': EU.append(float(city['temperature']))
            else: nonEU.append(float(city['temperature']))