From c94879d15ebad56ca02d99433d2832d730b67ee5 Mon Sep 17 00:00:00 2001
From: Bruno Oliveira <bruno@pytest.org>
Date: Wed, 12 Nov 2025 09:15:21 -0300
Subject: [PATCH] regendoc: remove CI environment variables (#13950)

pytest auto-detects and uses more verbose output when running in CI.

Change tox:regendoc to remove those environment variables, because we do not want extra verbose output in the user documentation.

See #13938 (comment).

(cherry picked from commit 82e9b97caf576de2144b414c58edc87fed5873e7)
---
 src/_pytest/compat.py | 1 +
 tox.ini               | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/src/_pytest/compat.py b/src/_pytest/compat.py
index 2f5a4c863f9..72c3d0918fb 100644
--- a/src/_pytest/compat.py
+++ b/src/_pytest/compat.py
@@ -309,5 +309,6 @@ def __call__(self) -> bool:
 def running_on_ci() -> bool:
     """Check if we're currently running on a CI system."""
     # Only enable CI mode if one of these env variables is defined and non-empty.
+    # Note: review `regendoc` tox env in case this list is changed.
     env_vars = ["CI", "BUILD_NUMBER"]
     return any(os.environ.get(var) for var in env_vars)
diff --git a/tox.ini b/tox.ini
index 2e91ddcb2d6..70b439f7573 100644
--- a/tox.ini
+++ b/tox.ini
@@ -171,6 +171,10 @@ commands =
 setenv =
     # We don't want this warning to reach regen output.
     PYTHONWARNDEFAULTENCODING=
+    # Remove CI markers: pytest auto-detects those and uses more verbose output, which is undesirable
+    # for the example documentation.
+    CI=
+    BUILD_NUMBER=
 
 [testenv:plugins]
 description =