I’ll apologize in advance for this one since I suspect a lot of people have hit this.

The current implementation doesn’t allow for a trailing backslash in the string.

Why don’t raw strings in Python work more like C# @”…” strings?  Then it would allow for a trailing backslash and you could still get a single quote by two consecutive quotes characters.

f=r'c:\src\f'         # This is ok and gives you what you want

f=r'c:\src\f\'       # Compilation error. String is not terminated.

f=r'''c:\src\f\'''   # This doesn't work either and causes a compilation error.

f=r'Here''s another mistake'   # This doesn't do what you would think. 

                                                            # You get 'Heres another mistake'

f=r'''Here's another mistake'''   # This works but being able to use raw strings for this would be nice.

f=’c:\\src\\f\\’  # this works but is ugly

I just don’t understand the rationale for the current implementation.   I thought the intention of raw strings was to allow for backslashes in the string.  The current implementation does a bad job at it.  Any chance this could be changed with a backward compatibility option?