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gh-138013: Move test.test_io to be a module #138153

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Merged
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Aug 31, 2025
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gh-138013: Move test.test_io to be a module #138153

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5 changes: 5 additions & 0 deletions Lib/test/test_io/__init__.py
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@@ -0,0 +1,5 @@
import os
from test.support import load_package_tests

def load_tests(*args):
return load_package_tests(os.path.dirname(__file__), *args)
4 changes: 4 additions & 0 deletions Lib/test/test_io/__main__.py
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from . import load_tests
import unittest

unittest.main()
2 changes: 1 addition & 1 deletion Lib/test/test_io.py → Lib/test/test_io/test_general.py
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Expand Up @@ -5,7 +5,7 @@
# * test_memoryio - tests BytesIO and StringIO
# * test_fileio - tests FileIO
# * test_file - tests the file interface
# * test_io - tests everything else in the io module
# * test_io.test_general - tests everything else in the io module
# * test_univnewlines - tests universal newline support
# * test_largefile - tests operations on a file greater than 2**32 bytes
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Should the modules here be moved into the new package?

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My plan is yes over time, just limiting scope of changes (and PRs) to pieces I'm actively working on changing (Currently Buffered I/O layer). test_bufio I plan to do as part of this overall issue (gh-138013). Not sure how much people rely on the names currently (ex. tracking performance over time by measuring test runtime). Unfortunately there are no benchmarks for CPython I/O in pyperformance currently (is part of my backlog to add).

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The tests can and do move around, we don't make any guarantees here. Performance tests should use the pyperformance suite.

# (only enabled with -ulargefile)
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1 change: 1 addition & 0 deletions Makefile.pre.in
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Expand Up @@ -2669,6 +2669,7 @@ TESTSUBDIRS= idlelib/idle_test \
test/test_importlib/source \
test/test_inspect \
test/test_interpreters \
test/test_io \
test/test_json \
test/test_module \
test/test_multiprocessing_fork \
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