diff --git a/lib/matplotlib/tests/test_pyplot.py b/lib/matplotlib/tests/test_pyplot.py
index 6f9ddd5ccf21..d0d28381a5c6 100644
--- a/lib/matplotlib/tests/test_pyplot.py
+++ b/lib/matplotlib/tests/test_pyplot.py
@@ -1,6 +1,5 @@
import difflib
import numpy as np
-import os
import subprocess
import sys
from pathlib import Path
@@ -371,23 +370,14 @@ def test_set_current_axes_on_subfigure():
def test_pylab_integration():
- pytest.importorskip("IPython")
- subprocess.run(
- [
- sys.executable,
- "-m",
- "IPython",
- "--pylab",
- "-c",
- ";".join((
- "import matplotlib.pyplot as plt",
- "assert plt._REPL_DISPLAYHOOK == plt._ReplDisplayHook.IPYTHON",
- )),
- ],
- env={**os.environ, "SOURCE_DATE_EPOCH": "0"},
+ IPython = pytest.importorskip("IPython")
+ mpl.testing.subprocess_run_helper(
+ IPython.start_ipython,
+ "--pylab",
+ "-c",
+ ";".join((
+ "import matplotlib.pyplot as plt",
+ "assert plt._REPL_DISPLAYHOOK == plt._ReplDisplayHook.IPYTHON",
+ )),
timeout=60,
- check=True,
- stdout=subprocess.PIPE,
- stderr=subprocess.PIPE,
- universal_newlines=True,
)
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