syntax errors

[hayd]

Not sure what should happen with syntax errors, atm files with bad syntax are left unchanged, and no message is shown. Maybe check autopep8._find_logical doesn't raise (SyntaxError, tokenize.TokenError) if verbose?

[hayd]

I guess the question is, what do we want to happen if you are doing this inplace, and one file fails.

Two choices (suppose running inplace):

1. just let everything work, BUT after fixing then exit(1) and give a message (if verbosity>=1).
2. raise (before doing any copying) and exit(1) and report failure.

Personally I kinda prefer 1... though 2 is easier. I guess to do 1. you just bookkeep an files_with_syntax_errors list, and print/exit based on that. (There'll be a trivial tweak to the jobs branch.)