How to convert CRLF to LF on a Windows machine in Python

Question

So I got those template, they are all ending in LF and I can fill some terms inside with format and still get LF files by opening with "wb"

Those templates

Answer 1

Python's open function supports the 'rU' mode for universal newlines, in which case it doesn't mind which sort of newline each line has. In Python 3 you can also request a specific form of newline with the newline argument for open.

Translating from one form to the other is thus rather simple in Python:

with open('filename.in', 'rU') as infile,                 \
   open('filename.out', 'w', newline='\n') as outfile:
       outfile.writelines(infile.readlines())

(Due to the newline argument, the U is actually deprecated in Python 3; the equivalent form is newline=None.)