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Python File writelines() Method

❮ File Methods


Example

Open the file with "a" for appending, then add a list of texts to append to the file:

f = open("demofile3.txt", "a")
f.writelines(["See you soon!", "Over and out."])
f.close()

#open and read the file after the appending:
f = open("demofile3.txt", "r")
print(f.read())
Run example »

Definition and Usage

The writelines() method writes the items of a list to the file.

Where the texts will be inserted depends on the file mode and stream position.

"a":  The texts will be inserted at the current file stream position, default at the end of the file.

"w": The file will be emptied before the texts will be inserted at the current file stream position, default 0.


Syntax

file.writelines(list)

Parameter Values

Parameter Description
list The list of texts or byte objects that will be inserted.

More examples

Example

The same example as above, but inserting line breaks for each list item:

f = open("demofile3.txt", "a")
f.writelines(["\nSee you soon!", "\nOver and out."])
f.close()

#open and read the file after the appending:
f = open("demofile3.txt", "r")
print(f.read())
Run example »

❮ File Methods