Bug in regrtest when name in SPLITTESTDIRS also matches a module name in tests#109402
Description
Bug report
During #109368 I tried to create Lib/test/test_future/ directory. It did not go well:
» ./python.exe -m test test_future Traceback (most recent call last): File "/Users/sobolev/Desktop/cpython/Lib/runpy.py", line 198, in _run_module_as_main return _run_code(code, main_globals, None, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/runpy.py", line 88, in _run_code exec(code, run_globals) File "/Users/sobolev/Desktop/cpython/Lib/test/__main__.py", line 2, in <module> main() File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/main.py", line 511, in main Regrtest(ns).main(tests=tests) File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/main.py", line 492, in main selected, tests = self.find_tests(tests) ^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/main.py", line 176, in find_tests alltests = findtests(testdir=self.test_dir, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/findtests.py", line 45, in findtests tests.extend(findtests(testdir=subdir, exclude=exclude, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/findtests.py", line 45, in findtests tests.extend(findtests(testdir=subdir, exclude=exclude, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/findtests.py", line 38, in findtests for name in os.listdir(testdir): ^^^^^^^^^^^^^^^^^^^ FileNotFoundError: [Errno 2] No such file or directory: '/Users/sobolev/Desktop/cpython/Lib/test/test_future/test_future' I renamed Lib/test/test_future/test_future.py to Lib/test/test_future/test_import_future.py
Now I get a new error (but similar):
» ./python.exe -m test test_future Traceback (most recent call last): File "/Users/sobolev/Desktop/cpython/Lib/runpy.py", line 198, in _run_module_as_main return _run_code(code, main_globals, None, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/runpy.py", line 88, in _run_code exec(code, run_globals) File "/Users/sobolev/Desktop/cpython/Lib/test/__main__.py", line 2, in <module> main() File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/main.py", line 511, in main Regrtest(ns).main(tests=tests) File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/main.py", line 492, in main selected, tests = self.find_tests(tests) ^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/main.py", line 176, in find_tests alltests = findtests(testdir=self.test_dir, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/findtests.py", line 45, in findtests tests.extend(findtests(testdir=subdir, exclude=exclude, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/findtests.py", line 45, in findtests tests.extend(findtests(testdir=subdir, exclude=exclude, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/sobolev/Desktop/cpython/Lib/test/libregrtest/findtests.py", line 38, in findtests for name in os.listdir(testdir): ^^^^^^^^^^^^^^^^^^^ FileNotFoundError: [Errno 2] No such file or directory: '/Users/sobolev/Desktop/cpython/Lib/test/test_concurrent_futures/test_future' This looks like a bug to me.