From e9bb6879e29d67b3999de4119c65b63c5e22b67b Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Tue, 2 Jul 2024 14:41:43 -0400
Subject: [PATCH] Specify environment-conditional transitive deps.

Workaround for pypa/pip#12770.
---
 tools/vendored.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/vendored.py b/tools/vendored.py
index 29457720b6..63d8c577cf 100644
--- a/tools/vendored.py
+++ b/tools/vendored.py
@@ -219,6 +219,11 @@ def install_deps(deps, vendor):
     """
     Install the deps to vendor.
     """
+    # workaround for https://github.com/pypa/pip/issues/12770
+    deps += [
+        'zipp >= 3.7',
+        'backports.tarfile',
+    ]
     install_args = [
         sys.executable,
         '-m',