[Tutor] Raw string

[Monika Jisswel]

>
> I don't know in advance what the file name will be...


import re
for line in myfile:
    if re.search(r'\', line):
        line = line.replace('\\', '\\\\')

if you have lines that contain a \ in them that you don't want to substitute
then you need another if statement.
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