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test_readline fails with libeditline+musl #159424
Description
Bug report
When building cpython 3.14.8 on Linux with editline (instead of readline) and musl, the test_readline tests fail:
FAIL: test_append_limited_history (test.test_readline.TestHistoryManipulation.test_append_limited_history)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python3.14/test/test_readline.py", line 208, in test_append_limited_history
self.assertEqual(readline.get_history_item(1), "second line")
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: '_HiStOrY_V2_' != 'second line'
- _HiStOrY_V2_
+ second line
======================================================================
FAIL: test_write_read_append (test.test_readline.TestHistoryManipulation.test_write_read_append)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/lib/python3.14/test/test_readline.py", line 101, in test_write_read_append
self.assertEqual(readline.get_current_history_length(), 3)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 4 != 3
The tests succeed when glibc is used in an otherwise identical configuration, and also worked in 3.14.7. e87da80 feels relevant.
CPython versions tested on:
3.14
Operating systems tested on:
Linux
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