Python Writerow ejemplo de código csv

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Ejemplo 1: crear un archivo csv python

# This action requires the 'csv' moduleimport csv

# The basic usage is to first define the rows of the csv file:
row_list =[["SN","Name","Contribution"],[1,"Linus Torvalds","Linux Kernel"],[2,"Tim Berners-Lee","World Wide Web"],[3,"Guido van Rossum","Python Programming"]]# And then use the following to create the csv file:withopen('protagonist.csv','w', newline='')asfile:
    writer = csv.writer(file)
    writer.writerows(row_list)# This will create a csv file in the current directory

Ejemplo 2: escritura csv python

import csv

withopen('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')

Ejemplo 3: lector de csv python

import csv

withopen('employee_birthday.txt', mode='r')as csv_file:
    csv_reader = csv.DictReader(csv_file)
    line_count =0for row in csv_reader:if line_count ==0:print(f'Column names are ", ".join(row)')
            line_count +=1print(f'trow["name"] works in the row["department"] department, and was born in row["birthday month"].')
        line_count +=1print(f'Processed line_count lines.')

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