[Tut] Pandas to_csv()

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Pandas to_csv()



You can convert a list of lists to aPandas DataFrame that provides you with powerful capabilities such as the

Code:

to_csv()

method. This is the easiest method and it allows you to avoid importing yet another library (I use Pandas in many Python projects anyways).

Code:

salary = [['Alice', 'Data Scientist', 122000], ['Bob', 'Engineer', 77000], ['Ann', 'Manager', 119000]] # Method 2 import pandas as pd df = pd.DataFrame(salary) df.to_csv('file2.csv', index=False, header=False)

Output:

Code:

# file2.csv Alice,Data Scientist,122000 Bob,Engineer,77000 Ann,Manager,119000

You create a Pandas DataFrame—which is Python’s default representation of tabular data. Think of it as an Excel spreadsheet within your code (with rows and columns).

The DataFrame is a very powerful data structure that allows you to perform various methods. One of those is the

Code:

to_csv()

method that allows you to write its contents into a CSV file.

You set the

Code:

index

and

Code:

header

arguments of the

Code:

to_csv()

method to

Code:

False

because Pandas, per default, adds integer row and column indices 0, 1, 2, …. Again, think of them as the row and column indices in your Excel spreadsheet. You don’t want them to appear in the CSV file so you set the arguments to

Code:

False

.

If you want to customize the CSV output, you’ve got a lot of special arguments to play with. Check out thisarticle for a comprehensive list of all arguments.

Related article:Pandas Cheat Sheets to Pin to Your Wall

Feel free to play with alternative methods to convert a list of lists to a CSV filein our interactive code shell. Simply click the “Run” button and find the generated CSV files in the “Files” tab.

https://repl.it/@finxter/methodscsvlisto...?lite=true



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