From 9da4012a025294413fc1f956e081ee003df2411e Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Thu, 28 Apr 2022 12:04:55 +0200
Subject: [PATCH] No longer use undocumented module 'sre_constants'

---
 pyparsing.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/pyparsing.py b/pyparsing.py
index 581d5bb..774222b 100644
--- a/pyparsing.py
+++ b/pyparsing.py
@@ -105,7 +105,6 @@ import copy
 import sys
 import warnings
 import re
-import sre_constants
 import collections
 import pprint
 import traceback
@@ -3310,7 +3309,7 @@ class Regex(Token):
             try:
                 self.re = re.compile(self.pattern, self.flags)
                 self.reString = self.pattern
-            except sre_constants.error:
+            except re.error:
                 warnings.warn("invalid pattern (%s) passed to Regex" % pattern,
                               SyntaxWarning, stacklevel=2)
                 raise
@@ -3501,7 +3500,7 @@ class QuotedString(Token):
             self.re = re.compile(self.pattern, self.flags)
             self.reString = self.pattern
             self.re_match = self.re.match
-        except sre_constants.error:
+        except re.error:
             warnings.warn("invalid pattern (%s) passed to Regex" % self.pattern,
                           SyntaxWarning, stacklevel=2)
             raise
-- 
2.33.1