I have the simple code:
f = open('out.txt','w') f.write('line1n') 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 rn
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.
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Answer
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.