Fixed #30899 -- Lazily compiled import time regular expressions.

2 files changed, 4 insertions, 3 deletions

diff --git a/django/forms/fields.py b/django/forms/fields.py
index 36ec634929..285f8cfc76 100644
--- a/django/forms/fields.py
+++ b/django/forms/fields.py
@@ -28,6 +28,7 @@ from django.utils import formats
 from django.utils.dateparse import parse_duration
 from django.utils.duration import duration_string
 from django.utils.ipv6 import clean_ipv6_address
+from django.utils.regex_helper import _lazy_re_compile
 from django.utils.translation import gettext_lazy as _, ngettext_lazy
 
 __all__ = (
@@ -243,7 +244,7 @@ class IntegerField(Field):
     default_error_messages = {
         'invalid': _('Enter a whole number.'),
     }
-    re_decimal = re.compile(r'\.0*\s*$')
+    re_decimal = _lazy_re_compile(r'\.0*\s*$')
 
     def __init__(self, *, max_value=None, min_value=None, **kwargs):
         self.max_value, self.min_value = max_value, min_value
diff --git a/django/forms/widgets.py b/django/forms/widgets.py
index f9627f2918..59b7880cd4 100644
--- a/django/forms/widgets.py
+++ b/django/forms/widgets.py
@@ -4,7 +4,6 @@ HTML Widget classes
 
 import copy
 import datetime
-import re
 import warnings
 from collections import defaultdict
 from itertools import chain
@@ -17,6 +16,7 @@ from django.utils.datastructures import OrderedSet
 from django.utils.dates import MONTHS
 from django.utils.formats import get_format
 from django.utils.html import format_html, html_safe
+from django.utils.regex_helper import _lazy_re_compile
 from django.utils.safestring import mark_safe
 from django.utils.topological_sort import (
     CyclicDependencyError, stable_topological_sort,
@@ -935,7 +935,7 @@ class SelectDateWidget(Widget):
     template_name = 'django/forms/widgets/select_date.html'
     input_type = 'select'
     select_widget = Select
-    date_re = re.compile(r'(\d{4}|0)-(\d\d?)-(\d\d?)$')
+    date_re = _lazy_re_compile(r'(\d{4}|0)-(\d\d?)-(\d\d?)$')
 
     def __init__(self, attrs=None, years=None, months=None, empty_label=None):
         self.attrs = attrs or {}