From 9563bbdac56021882528f645267d225dae98818c Mon Sep 17 00:00:00 2001
From: priya-kinthali <147703874+priya-kinthali@users.noreply.github.com>
Date: Thu, 12 Mar 2026 21:33:49 +0530
Subject: [PATCH] Apply upstream cpython patch to fix test_bz2 on 3.15.0a6
 (Ubuntu-22.04 arm64) (#381)

* patch for 3.15.0a6

* patch for 3.15.0a6
---
 builders/nix-python-builder.psm1 | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/builders/nix-python-builder.psm1 b/builders/nix-python-builder.psm1
index 010cdba..802c2cd 100644
--- a/builders/nix-python-builder.psm1
+++ b/builders/nix-python-builder.psm1
@@ -146,6 +146,14 @@ class NixPythonBuilder : PythonBuilder {
         $sourcesLocation = $this.Download()
 
         Push-Location -Path $sourcesLocation
+
+        # Patch for 3.15.0a6: Fix test_bz2 BIG_DATA to ensure two compressed blocks
+        # See: https://github.com/python/cpython/pull/145730
+        if (($this.Architecture -match "arm64") -and ($this.Platform -match "22\.04") -and ($this.Version -eq [semver]"3.15.0-alpha.6")) {
+            Write-Host "Applying patch for python/cpython#145730 (test_bz2 fix)..."
+            Execute-Command -Command "curl -sL -o Lib/test/test_bz2.py https://raw.githubusercontent.com/python/cpython/19676e5fc28bdee8325a062a31ddeee60960cf75/Lib/test/test_bz2.py"
+        }
+
         Write-Host "Configure for $($this.Platform)..."
         $this.Configure()