Python path and raw strings [closed]

Answer 1

The r prefix is used to indicate the you want the string to be evaluated as "raw", keeping backslashes as-is.

Try this:

path = r"D:\final"
nameFile = "Res"

result = path + '\\' + nameFile + 'mat'

As you can see, I added r before the string expression that contains a non-escaped backslash.

To see the difference, try doing :

print("\\")
print(r"\\")

(Without the parentheses if you're using Python2)

Also, I recommend using the pathlib module of the standard library to handle paths properly. This will also help a lot if you try to make your code portable:

from pathlib import Path
(Path("D:/final") / path / nameFile).with_suffix('.mat')