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[3.13] gh-128636: Fix crash in PyREPL when os.environ is overwritten with an invalid value (GH-128653) (#129186)

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gh-128636: Fix crash in PyREPL when `os.environ` is overwritten with an invalid value (GH-128653)
(cherry picked from commit ba9a4b6215)

Co-authored-by: Tomas R <tomas.roun8@gmail.com>
This commit is contained in:
Miss Islington (bot) 2025-01-22 17:38:13 +01:00 • committed by GitHub
parent 67971cd605
commit 0b90dc8e89
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3 changed files with 22 additions and 5 deletions
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13
Lib/test/test_pyrepl/test_unix_console.py
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@ -1,7 +1,9 @@
import itertools
import os
import sys
import unittest
from functools import partial
from test.support import os_helper
from unittest import TestCase
from unittest.mock import MagicMock, call, patch, ANY
@ -312,3 +314,14 @@ class TestConsole(TestCase):
)
console.restore()
con.restore()
def test_getheightwidth_with_invalid_environ(self, _os_write):
# gh-128636
console = UnixConsole()
with os_helper.EnvironmentVarGuard() as env:
env["LINES"] = ""
self.assertIsInstance(console.getheightwidth(), tuple)
env["COLUMNS"] = ""
self.assertIsInstance(console.getheightwidth(), tuple)
os.environ = []
self.assertIsInstance(console.getheightwidth(), tuple)