I have the simple code:
f = open('out.txt','w')
f.write('line1\n')
f.write('line2')
f.close()
Code runs on windows and gives file size 12 bytes
, and linux gives 11 bytes
The reason is new line
In linux it's \n
and for win it is \r\n
But in my code I specify new line as \n
. The question is how can I make python keep new line as \n
always, and not check the operating system.
You need to open the file in binary mode i.e. wb
instead of w
. If you don't, the end of line characters are auto-converted to OS specific ones.
Here is an excerpt from Python reference about open()
.
The default is to use text mode, which may convert '\n' characters to a platform-specific representation on writing and back on reading.