def format_code(source, preferred_quote="'"):
    """Return source code with quotes unified."""
    try:
        return _format_code(source, preferred_quote)
    except (tokenize.TokenError, IndentationError):
        return source
def format_code ( source , preferred_quote = "'" ) : try : return _format_code ( source , preferred_quote ) except ( tokenize . TokenError , IndentationError ) : return source
Return source code with quotes unified.