From 519ea798658ff0aca8877434affbc0414ce81936 Mon Sep 17 00:00:00 2001 From: ptth222 Date: Thu, 6 Mar 2025 19:20:41 -0500 Subject: [PATCH] Update _arrow_string_mixins.py Address #61072. --- pandas/core/arrays/_arrow_string_mixins.py | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/pandas/core/arrays/_arrow_string_mixins.py b/pandas/core/arrays/_arrow_string_mixins.py index 1ca52ce64bd77..145d848a9e38c 100644 --- a/pandas/core/arrays/_arrow_string_mixins.py +++ b/pandas/core/arrays/_arrow_string_mixins.py @@ -321,8 +321,12 @@ def _str_fullmatch( flags: int = 0, na: Scalar | lib.NoDefault = lib.no_default, ): - if not pat.endswith("$") or pat.endswith("\\$"): - pat = f"{pat}$" + if not pat.endswith("$") and not pat.startswith("^"): + pat = f"^({pat})$" + elif not pat.endswith("$"): + pat = f"^({pat[1:]})$" + elif not pat.startswith("^"): + pat = f"^({pat[0:-1]})$" return self._str_match(pat, case, flags, na) def _str_find(self, sub: str, start: int = 0, end: int | None = None):