From 6481d1451dca0320e7549367f1d7f263c94b5146 Mon Sep 17 00:00:00 2001
From: native-api <vano@mail.mipt.ru>
Date: Fri, 24 Apr 2026 00:34:40 +0300
Subject: [PATCH] pyenv-latest: fast path for when there is an exact match
 (#3437)

Avoids O(N^2) complexity when `pyenv-latest` is called in a loop
for existing entries
---
 libexec/pyenv-latest | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libexec/pyenv-latest b/libexec/pyenv-latest
index 7d85e302..3a32439e 100755
--- a/libexec/pyenv-latest
+++ b/libexec/pyenv-latest
@@ -10,6 +10,7 @@
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
+
 while [[ $# -gt 0 ]]
 do
     case "$1" in
@@ -38,6 +39,10 @@ exitcode=0
 IFS=$'\n'
 
     if [[ -z $FROM_KNOWN ]]; then
+        if [[ -d $PYENV_ROOT/versions/$prefix ]]; then
+            echo "$prefix"
+            exit $exitcode;
+        fi
         DEFINITION_CANDIDATES=( $(pyenv-versions --bare --skip-envs) )
     else
         DEFINITION_CANDIDATES=( $(python-build --definitions ) )