diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
index 8f672af70ebc..e98e8ea07502 100644
--- a/lib/matplotlib/__init__.py
+++ b/lib/matplotlib/__init__.py
@@ -400,12 +400,15 @@ def impl(args, regex, min_ver=None, ignore_exit_code=False):
try:
output = subprocess.check_output(
args, stderr=subprocess.STDOUT,
- text=True, errors="replace")
+ text=True, errors="replace", timeout=30)
except subprocess.CalledProcessError as _cpe:
if ignore_exit_code:
output = _cpe.output
else:
raise ExecutableNotFoundError(str(_cpe)) from _cpe
+ except subprocess.TimeoutExpired as _te:
+ msg = f"Timed out running {cbook._pformat_subprocess(args)}"
+ raise ExecutableNotFoundError(msg) from _te
except OSError as _ose:
raise ExecutableNotFoundError(str(_ose)) from _ose
match = re.search(regex, output)
diff --git a/lib/matplotlib/tests/test_matplotlib.py b/lib/matplotlib/tests/test_matplotlib.py
index 37b41fafdb78..d0a3f8c617e1 100644
--- a/lib/matplotlib/tests/test_matplotlib.py
+++ b/lib/matplotlib/tests/test_matplotlib.py
@@ -1,6 +1,7 @@
import os
import subprocess
import sys
+from unittest.mock import patch
import pytest
@@ -80,3 +81,16 @@ def test_importable_with__OO():
[sys.executable, "-OO", "-c", program],
env={**os.environ, "MPLBACKEND": ""}, check=True
)
+
+
+@patch('matplotlib.subprocess.check_output')
+def test_get_executable_info_timeout(mock_check_output):
+ """
+ Test that _get_executable_info raises ExecutableNotFoundError if the
+ command times out.
+ """
+
+ mock_check_output.side_effect = subprocess.TimeoutExpired(cmd=['mock'], timeout=30)
+
+ with pytest.raises(matplotlib.ExecutableNotFoundError, match='Timed out'):
+ matplotlib._get_executable_info.__wrapped__('inkscape')
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