csv dictwriter in python

In this video i have shared python tutorial on csv dictwriter in python which share how to use dictwriter for writing in csv file.
here is exact code i used for this video.
#python tutorial: csv.dictwriter in python
import csv
with open('demofile.csv','w',newline="") as csvfile:
fieldnames = ['first_name', 'last_name']
writer = csv.DictWriter(csvfile, fieldnames=fieldnames)

writer.writeheader()
writer.writerow({'first_name': 'Alex', 'last_name': 'Jones'})
writer.writerow({'first_name': 'Patt', 'last_name': 'Simons'})
writer.writerow({'first_name': 'Glenn', 'last_name': 'li'})
print("Records Inserted Successfully") .
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