Python 如何将pyparsing Group与SkipTo一起用于文件解析？

当我将pyparsing SkipTo与其他解析器一起使用时，文件解析似乎是挂起的

unexpected = pp.SkipTo(pp.LineEnd())('unexpected*')
rules = pp.Group(predefined_parser) | unexpected

parser = pp.Dict(pp.OneOrMore(rules)
parser.ignore('*' + pp.restOfLine)
parser.parseFile(filename, True)

我打开了setDebug，下面是调试消息。任何见解都将受到高度赞赏

Match Dict:([{Group:({Combine:({"something" W:(_) Combine:({W:(ABCD...) [W:(0123...)]}) W:(_) {"sth1" | "sth2"}}) Suppress:("=") W:(0123...)}) | SkipTo:(LineEnd)}]...) at loc 0(1,1)

在我更改为以下内容后，AttributeError被抛出

unexpected = pp.SkipTo(pp.LineEnd(), include=True)('unexpected*')

这是AttributeError消息

File "/nfs/pdx/disks/icf_gwa_002/ylim13/anaconda2/lib/python2.7/site-packages/pyparsing.py", line 1599, in parseFile
  return self.parseString(file_contents, parseAll)
File "/nfs/pdx/disks/icf_gwa_002/ylim13/anaconda2/lib/python2.7/site-packages/pyparsing.py", line 1078, in _parseNoCache
  tokens = self.postParse( instring, loc, tokens )
File "/nfs/pdx/disks/icf_gwa_002/ylim13/anaconda2/lib/python2.7/site-packages/pyparsing.py", line 3249, in postParse
  dictvalue = tok.copy() #ParseResults(i)
AttributeError: 'str' object has no attribute 'copy'

简短回答-更改：

    | pp.SkipTo(pp.LineEnd(), include=True)

致：

当它被传递给Dict时，它会看到SkipTo创建的两个值，因此假设它是要添加到累积Dict中的键值对的解析结果。通过抑制此结果，Dict会得到一个空字符串，它知道可以忽略它

    | pp.SkipTo(pp.LineEnd(), include=True).suppress()