When writing to a CSV file using the writerow() method of the csv.DictWriter object, what must each key in the input dict represent? Below is an example:

with open('test_file.csv', mode='w') as csv_file:

writer = csv.DictWriter(
csv_file,
fieldnames=['first_col', 'second_col']
)
writer.writeheader()

# This input dictionary is what the question is referring
# to and is not necessarily correct as shown.
writer.writerow({'key1':'value1', 'key2':'value2'})

Question

When writing to a CSV file using the writerow() method of the csv.DictWriter object, what must each key in the input dict represent? Below is an example:

with open('test_file.csv', mode='w') as csv_file:

writer = csv.DictWriter(
        csv_file, 
        fieldnames=['first_col', 'second_col']
    )
    writer.writeheader()

# This input dictionary is what the question is referring
    # to and is not necessarily correct as shown.
    writer.writerow({'key1':'value1', 'key2':'value2'})

Accepted Answer

Each key must match up to the field names (column names) used to identify the column data

Answer

Each key must match up to the field names (index names) used to identify the row data

Answer

Each key indicates the column index as an integer for where the value should go

Answer

Each key indicates the row index as an integer for where the data should go

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When writing to a CSV file using the writerow() method of the csv.DictWriter obj...

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