csv python write
import csv
with open('names.csv', 'w') as csvfile:
fieldnames = ['first_name', 'last_name']
writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
writer.writeheader()
writer.writerow({'first_name': 'Baked', 'last_name': 'Beans'})
writer.writerow({'first_name': 'Lovely', 'last_name': 'Spam'})
writer.writerow({'first_name': 'Wonderful', 'last_name': 'Spam'})write to specific row with python csv
# YOU CAN NOT CHOOSE WHAT ROW TO WRITE TO WHEN WRITING A ROW TO A CSV
# FILE WITH THE PYTHON CSV MODULE
# INSTEAD, YOU MUST WRITE ROWS IN CHRONOLOGICAL ORDER:
# EXAMPLE:
import csv
with open('file.csv', 'w') as f:
writer = csv.writer(f)
header = ['year','month','day'] # first row
blank_row = ['n'] # second row (blank row)
row1 = ['2020','Jul','23'] # 3rd row
writer.writerow(header) # write the first row
writer.writerow(blank_row) # write the blank row to skip a line
writer.writerow(row1) # write the third rowpython csv reader
with open(r'c:dlFrameRecentSessions.csv') as csv_file:
csv_reader = csv.reader(csv_file, delimiter=',')
line_count = 0
for row in csv_reader:
if line_count == 0:
print(f'Column names are {", ".join(row)}')
line_count += 1
else:
print(f't{row[0]} works in the {row[1]} department, and was born in {row[2]}.')
line_count += 1
print(f'Processed {line_count} lines.')csv reader python
import csv
with open('employee_birthday.txt', mode='r') as csv_file:
csv_reader = csv.DictReader(csv_file)
line_count = 0
for row in csv_reader:
if line_count == 0:
print(f'Column names are {", ".join(row)}')
line_count += 1
print(f't{row["name"]} works in the {row["department"]} department, and was born in {row["birthday month"]}.')
line_count += 1
print(f'Processed {line_count} lines.')python csv writer row by row
import csv
with open(<path to output_csv>, "wb") as csv_file:
writer = csv.writer(csv_file, delimiter=',')
for line in data:
writer.writerow(line)Copyright © 2021 Codeinu
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