fypp.py 文件源码

def _formatted_exception(exc):
    error_header_formstr = '{file}:{line}: '
    error_body_formstr = 'error: {errormsg} [{errorclass}]'
    if not isinstance(exc, FyppError):
        return error_body_formstr.format(
            errormsg=str(exc), errorclass=exc.__class__.__name__)
    out = []
    if exc.fname is not None:
        if exc.span[1] > exc.span[0] + 1:
            line = '{0}-{1}'.format(exc.span[0] + 1, exc.span[1])
        else:
            line = '{0}'.format(exc.span[0] + 1)
        out.append(error_header_formstr.format(file=exc.fname, line=line))
    out.append(error_body_formstr.format(errormsg=exc.msg,
                                         errorclass=exc.__class__.__name__))
    if exc.cause is not None:
        out.append('\n' + _formatted_exception(exc.cause))
    out.append('\n')
    return ''.join(out)