Pymorphy2 fails to parse Unicode characters with no name defined

[vhsw]

Pymorphy2 fails to parse Unicode characters with no name defined. Minimal example:

import pymorphy2

pymorphy2.MorphAnalyzer().parse('𘐐')

Traceback:

KeyError                                  Traceback (most recent call last)
~/project/.venv/lib/python3.8/site-packages/pymorphy2/shapes.py in is_latin_char(uchr)
     12     try:
---> 13         return _latin_letters_cache[uchr]
     14     except KeyError:

KeyError: '𘐐'

During handling of the above exception, another exception occurred:

ValueError                                Traceback (most recent call last)
<ipython-input-47-a1997180ffcd> in <module>
      1 import pymorphy2
      2 
----> 3 pymorphy2.MorphAnalyzer().parse('𘐐')

~/project/.venv/lib/python3.8/site-packages/pymorphy2/analyzer.py in parse(self, word)
    313 
    314         for analyzer, is_terminal in self._units:
--> 315             res.extend(analyzer.parse(word, word_lower, seen))
    316 
    317             if is_terminal and res:

~/project/.venv/lib/python3.8/site-packages/pymorphy2/units/by_shape.py in parse(self, word, word_lower, seen_parses)
     25 
     26     def parse(self, word, word_lower, seen_parses):
---> 27         shape = self.check_shape(word, word_lower)
     28         if not shape:
     29             return []

~/project/.venv/lib/python3.8/site-packages/pymorphy2/units/by_shape.py in check_shape(self, word, word_lower)
     89 
     90     def check_shape(self, word, word_lower):
---> 91         return is_latin(word)
     92 
     93 

~/project/.venv/lib/python3.8/site-packages/pymorphy2/shapes.py in is_latin(token)
     38     return (
     39         any(ch.isalpha() for ch in token) and
---> 40         all(is_latin_char(ch) for ch in token if ch.isalpha())
     41     )
     42 

~/project/.venv/lib/python3.8/site-packages/pymorphy2/shapes.py in <genexpr>(.0)
     38     return (
     39         any(ch.isalpha() for ch in token) and
---> 40         all(is_latin_char(ch) for ch in token if ch.isalpha())
     41     )
     42 

~/project/.venv/lib/python3.8/site-packages/pymorphy2/shapes.py in is_latin_char(uchr)
     15         if isinstance(uchr, bytes):
     16             uchr = uchr.decode('ascii')
---> 17         is_latin = 'LATIN' in unicodedata.name(uchr)
     18         return _latin_letters_cache.setdefault(uchr, is_latin)
     19 

ValueError: no such name