The raw strings have the following syntax:
If the letter r (uppercase or lowercase) appears just before the opening quote of a string.
It turns off the escape mechanism.
Python retains your backslashes literally, exactly as you type them in raw string.
myfile = open(r'C:\new\text.dat', 'w') --two backslashes are an escape sequence for one backslash, myfile = open('C:\\new\\text.dat', 'w')
Python itself sometimes uses this doubling scheme when it prints strings with embedded backslashes:
path = r'C:\new\text.dat' print( path ) # Show as Python code print(path) # User-friendly format print( len(path) ) # String length # from w w w.j a va2 s.com