如何在Python中检查EOF？ [复制]

如何在 Python 中检查 EOF？我在代码中发现了一个错误，其中分隔符后的最后一个文本块未添加到返回列表中。或者也许有更好的方式来表达这个功能？

这是我的代码：

def get_text_blocks(filename):
    text_blocks = []
    text_block = StringIO.StringIO()
    with open(filename, 'r') as f:
        for line in f:
            text_block.write(line)
            print line
            if line.startswith('-- -'):
                text_blocks.append(text_block.getvalue())
                text_block.close()
                text_block = StringIO.StringIO()
    return text_blocks

您可能会发现使用以下方法更容易解决此问题itertools.groupby http://docs.python.org/library/itertools.html#itertools.groupby.

def get_text_blocks(filename):
    import itertools
    with open(filename,'r') as f:
        groups = itertools.groupby(f, lambda line:line.startswith('-- -'))
        return [''.join(lines) for is_separator, lines in groups if not is_separator]

另一种选择是使用正则表达式 http://www.amk.ca/python/howto/regex/匹配分隔符：

def get_text_blocks(filename):
    import re
    seperator = re.compile('^-- -.*', re.M)
    with open(filename,'r') as f:
        return re.split(seperator, f.read())