在新行上写入文本文件

Question

The section of coding I've written is as such:

thing=9
text_file=open("something.txt", "a")
text_file.write("\n", str(thing))
text_file.close()

This always returns the error Type error: "write" only takes 1 argument. 2 given. What I'm trying to do is that each time I run this code it writes on a new line rather than the same line. Right now, if this doesn't work, I'm a bit confused how to do this. Any help would be appreciated!

Answer 1

The python interpreter is correct in saying:

"write" only takes 1 argument. 2 given

Python's file methods are documented here .

All you need to be doing is concatenating your string with the newline character. You can do so by replacing:

text_file.write("\n", str(thing))

with:

text_file.write("\n" + str(thing))

This will write an empty line before writing out what you want. This might not be what you are looking for. Instead you can do:

text_file.write(str(thing) + '\n')

Answer 2

Add a newline to the end ¹ of the string with the + operator:

text_file.write(str(thing) + "\n")

_{¹ Note: If you add it to the front, you will get a blank line at the top of your file, which may not be what you want.}