我正在使用一个名为pysd将vensim文件转换为 Python 的库，但是当我尝试这样做时（库函数），我得到一个解析错误，但不明白它的含义。
这是我的日志。
ParseError Traceback (most recent call last)
<ipython-input-1-9b0f6b9bac1f> in <module>()
1 get_ipython().magic(u'pylab inline')
2 import pysd
----> 3 model = pysd.read_vensim('201520_1A_Volare_Ev.Tecnica.itmx')
/Library/Python/2.7/site-packages/pysd/pysd.pyc in read_vensim(mdl_file)
45 """
46 from .vensim2py import translate_vensim
---> 47 py_model_file = translate_vensim(mdl_file)
48 model = PySD(py_model_file)
49 model.mdl_file = mdl_file
/Library/Python/2.7/site-packages/pysd/vensim2py.pyc in translate_vensim(mdl_file)
651 for section in file_sections:
652 if section['name'] == 'main':
--> 653 model_elements += get_model_elements(section['string'])
654
655 # extract equation components
/Library/Python/2.7/site-packages/pysd/vensim2py.pyc in get_model_elements(model_str)
158 """
159 parser = parsimonious.Grammar(model_structure_grammar)
--> 160 tree = parser.parse(model_str)
161
162 class ModelParser(parsimonious.NodeVisitor):
/Library/Python/2.7/site-packages/parsimonious/grammar.pyc in parse(self, text, pos)
121 """
122 self._check_default_rule()
--> 123 return self.default_rule.parse(text, pos=pos)
124
125 def match(self, text, pos=0):
/Library/Python/2.7/site-packages/parsimonious/expressions.pyc in parse(self, text, pos)
108
109 """
--> 110 node = self.match(text, pos=pos)
111 if node.end < len(text):
112 raise IncompleteParseError(text, node.end, self)
/Library/Python/2.7/site-packages/parsimonious/expressions.pyc in match(self, text, pos)
125 node = self.match_core(text, pos, {}, error)
126 if node is None:
--> 127 raise error
128 return node
129
ParseError: Rule 'escape_group' didn't match at '' (line 1, column 20243).