Python File writelines() Method
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 »
