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Asked:2021-11-15 23:15:51 +0000 UTC2021-11-15 23:15:51 +0000 UTC

使用正则表达式时出错： re.error: bad escape \p at position 0 re.error: bad escape \p at position 0

  • 772
import re
re.match(r'\p{script=Latin}', "Latin text")

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.8/re.py", line 191, in match
    return _compile(pattern, flags).match(string)
  File "/usr/lib/python3.8/re.py", line 304, in _compile
    p = sre_compile.compile(pattern, flags)
  File "/usr/lib/python3.8/sre_compile.py", line 764, in compile
    p = sre_parse.parse(p, flags)
  File "/usr/lib/python3.8/sre_parse.py", line 948, in parse
    p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0)
  File "/usr/lib/python3.8/sre_parse.py", line 443, in _parse_sub
    itemsappend(_parse(source, state, verbose, nested + 1,
  File "/usr/lib/python3.8/sre_parse.py", line 525, in _parse
    code = _escape(source, this, state)
  File "/usr/lib/python3.8/sre_parse.py", line 426, in _escape
    raise source.error("bad escape %s" % escape, len(escape))
re.error: bad escape \p at position 0

如您所见，该模块re不支持\p（匹配某些 Unicode 属性，用于在 RE 中方便地使用 Unicode）。

怎么修？

蟒蛇 3.8

python

1 个回答

  1. Best Answer

    尝试使用正则表达式模块：

    import regex

In [137]: regex.match(r'\p{script=Latin}', "Latin text")
Out[137]: <regex.Match object; span=(0, 1), match='L'>
    • 5

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