Failure if triple quotes not matched in function docstring

[montefra]

I'm writing a module, at which end I have a definition of a function with a doc string within triple quotes without any implementation. I've run pep8 (v1.5.7) on it and I get the following error:

Traceback (most recent call last):
  File "~/.local/bin/pep8", line 11, in 
    sys.exit(_main())
  File "~/.local/lib/python2.7/site-packages/pep8.py", line 1929, in _main
    report = pep8style.check_files()
  File "~/.local/lib/python2.7/site-packages/pep8.py", line 1672, in check_files
    runner(path)
  File "~/.local/lib/python2.7/site-packages/pep8.py", line 1684, in input_file
    return fchecker.check_all(expected=expected, line_offset=line_offset)
  File "~/.local/lib/python2.7/site-packages/pep8.py", line 1456, in check_all
    self.check_logical()
  File "~/.local/lib/python2.7/site-packages/pep8.py", line 1328, in check_logical
    (start_row, start_col) = mapping[0][1]
TypeError: 'NoneType' object has no attribute '__getitem__'

After some tests, I found that it's caused by not correctly matching the docstring quotes. Can be tested simply by running pep8 on

def foo():
    """test docstring""'

Notice the last being ' not ".
If I use single quotes, nothing happens.

The correct behaviour should be something like:

E901 TokenError: EOF in multi-line string

i.e. when a string is not correctly quoted at the end of the file

[drimer]

I've come across the same issue with a different case.

My code looks like something like this:

def foo():
    pass
\

def bar():
    pass

Although that's a stupid thing to do, the fact that flake8 never ends execution and doesn't report this properly has caused me some trouble.

[IanLee1521]

Resolved with commit e585618