Template, Csv

# template
import string

s = """\
Hi $name.

$contents

Have a good day
"""

t = string.Template(s)
c = t.substitute(name='Mike', contents='How are you?')
print(c)

####################################################################
# csv
import csv

# windows 의 경우 \r\n 때문에 newline 을 '' 로 설정
with open('test.csv', 'w', newline='') as csv_file:
    fieldnames = ['Name', 'Count']
    writer = csv.DictWriter(csv_file, fieldnames=fieldnames)
    writer.writeheader()
    writer.writerow({'Name': 'A', 'Count': 1})
    writer.writerow({'Name': 'B', 'Count': 2})

with open('test.csv', 'r') as csv_file:
    reader = csv.DictReader(csv_file)
    for row in reader:
        print(row['Name'], row['Count'])