Patrik Iselind added the comment:
For clarity, this is what i get in the test_exceptions test when i've applied
the attached diff.
$ ./python -m test -v test_exceptions
== CPython 3.7.0a0 (default:8e311f109b22, Dec 24 2016, 12:26:43) [GCC 5.4.0
20160609]
== Linux-4.4.0-53-generic-x86_64-with-debian-stretch-sid little-endian
== hash algorithm: siphash24 64bit
== cwd: /home/irina/patrik/cpython/build/test_python_19104
== encodings: locale=UTF-8, FS=utf-8
Testing with flags: sys.flags(debug=0, inspect=0, interactive=0, optimize=0,
dont_write_bytecode=0, no_user_site=0, no_site=0, ignore_environment=0,
verbose=0, bytes_warning=0, quiet=0, hash_randomization=1, isolated=0)
Run tests sequentially
0:00:00 [1/1] test_exceptions
testAttributes (test.test_exceptions.ExceptionTests) ... ok
testChainingAttrs (test.test_exceptions.ExceptionTests) ... ok
testChainingDescriptors (test.test_exceptions.ExceptionTests) ... ok
testExceptionCleanupNames (test.test_exceptions.ExceptionTests) ... ok
testExceptionCleanupState (test.test_exceptions.ExceptionTests) ... ok
testInfiniteRecursion (test.test_exceptions.ExceptionTests) ... ok
testInvalidAttrs (test.test_exceptions.ExceptionTests) ... ok
testInvalidTraceback (test.test_exceptions.ExceptionTests) ... ok
testKeywordArgs (test.test_exceptions.ExceptionTests) ... ok
testNoneClearsTracebackAttr (test.test_exceptions.ExceptionTests) ... ok
testRaising (test.test_exceptions.ExceptionTests) ... ok
testSettingException (test.test_exceptions.ExceptionTests) ... ok
testSyntaxErrorMessage (test.test_exceptions.ExceptionTests) ... ok
testSyntaxErrorOffset (test.test_exceptions.ExceptionTests) ... ok
testWithTraceback (test.test_exceptions.ExceptionTests) ... ok
test_3114 (test.test_exceptions.ExceptionTests) ... ok
test_MemoryError (test.test_exceptions.ExceptionTests) ... ok
test_WindowsError (test.test_exceptions.ExceptionTests) ... ok
test_badisinstance (test.test_exceptions.ExceptionTests) ... ok
test_errno_ENOTDIR (test.test_exceptions.ExceptionTests) ... ok
test_exception_target_in_nested_scope (test.test_exceptions.ExceptionTests) ...
ok
test_exception_with_doc (test.test_exceptions.ExceptionTests) ... ok
test_generator_close_cleanup_exc_state (test.test_exceptions.ExceptionTests)
... ok
test_generator_del_cleanup_exc_state (test.test_exceptions.ExceptionTests) ...
ok
test_generator_doesnt_retain_old_exc (test.test_exceptions.ExceptionTests) ...
ok
test_generator_finalizing_and_exc_info (test.test_exceptions.ExceptionTests)
... ok
test_generator_leaking (test.test_exceptions.ExceptionTests) ... ok
test_generator_leaking2 (test.test_exceptions.ExceptionTests) ... ok
test_generator_leaking3 (test.test_exceptions.ExceptionTests) ... ok
test_generator_leaking4 (test.test_exceptions.ExceptionTests) ... ok
test_generator_next_cleanup_exc_state (test.test_exceptions.ExceptionTests) ...
ok
test_generator_send_cleanup_exc_state (test.test_exceptions.ExceptionTests) ...
ok
test_generator_throw_cleanup_exc_state (test.test_exceptions.ExceptionTests)
... ok
test_memory_error_cleanup (test.test_exceptions.ExceptionTests) ... ok
test_recursion_error_cleanup (test.test_exceptions.ExceptionTests) ... ok
test_str (test.test_exceptions.ExceptionTests) ... ok
test_unhandled (test.test_exceptions.ExceptionTests) ... ok
test_unicode_change_attributes (test.test_exceptions.ExceptionTests) ... ok
test_unicode_errors_no_object (test.test_exceptions.ExceptionTests) ... ok
test_unraisable (test.test_exceptions.ExceptionTests) ...
BEGINBEGINBEGINBEGINBEGIN
Exception ignored in: <bound method
ExceptionTests.test_unraisable.<locals>.BrokenDel.__del__ of
<test.test_exceptions.ExceptionTests.test_unraisable.<locals>.BrokenDel object
at 0x7f4313a41ef8>>
Traceback (most recent call last):
File "/home/irina/patrik/cpython/Lib/test/test_exceptions.py", line 1024, in
__del__
raise exc
ValueError: del is broken
ENDENDENDENDENDENDENDEND
BEGINBEGINBEGINBEGINBEGIN
Exception ignored in: <object repr() failed>
Traceback (most recent call last):
File "/home/irina/patrik/cpython/Lib/test/test_exceptions.py", line 1024, in
__del__
raise exc
ValueError: del is broken
ENDENDENDENDENDENDENDEND
BEGINBEGINBEGINBEGINBEGIN
Exception ignored in: <bound method
ExceptionTests.test_unraisable.<locals>.BrokenExceptionDel.__del__ of
<test.test_exceptions.ExceptionTests.test_unraisable.<locals>.BrokenExceptionDel
object at 0x7f4313a41ef8>>
Traceback (most recent call last):
File "/home/irina/patrik/cpython/Lib/test/test_exceptions.py", line 1034, in
__del__
raise exc
test.test_exceptions.BrokenStrException: <exception str() failed>
ENDENDENDENDENDENDENDEND
ok
test_windows_message (test.test_exceptions.ExceptionTests)
Should fill in unknown error code in Windows error message ... skipped 'test
specific to Windows'
test_attributes (test.test_exceptions.ImportErrorTests) ... ok
test_non_str_argument (test.test_exceptions.ImportErrorTests) ... ok
test_reset_attributes (test.test_exceptions.ImportErrorTests) ... ok
----------------------------------------------------------------------
Ran 44 tests in 0.158s
OK (skipped=1)
1 test OK.
Total duration: 363 ms
Tests result: SUCCESS
$ ./python ../coveragepy run --pylib --source=exceptions Lib/test/regrtest.py
test_exceptions
Run tests sequentially
0:00:00 [1/1] test_exceptions
Exception ignored in: <bound method
ExceptionTests.test_unraisable.<locals>.BrokenDel.__del__ of
<test.test_exceptions.ExceptionTests.test_unraisable.<locals>.BrokenDel object
at 0x7f1c67de69b0>>
Traceback (most recent call last):
File "/home/irina/patrik/cpython/Lib/test/test_exceptions.py", line 1024, in
__del__
raise exc
ValueError: del is broken
BEGINBEGINBEGINBEGINBEGIN
ENDENDENDENDENDENDENDEND
Exception ignored in: <object repr() failed>
Traceback (most recent call last):
File "/home/irina/patrik/cpython/Lib/test/test_exceptions.py", line 1024, in
__del__
raise exc
ValueError: del is broken
BEGINBEGINBEGINBEGINBEGIN
ENDENDENDENDENDENDENDEND
Exception ignored in: <bound method
ExceptionTests.test_unraisable.<locals>.BrokenExceptionDel.__del__ of
<test.test_exceptions.ExceptionTests.test_unraisable.<locals>.BrokenExceptionDel
object at 0x7f1c67de6f60>>
Traceback (most recent call last):
File "/home/irina/patrik/cpython/Lib/test/test_exceptions.py", line 1034, in
__del__
raise exc
test.test_exceptions.BrokenStrException: <exception str() failed>
BEGINBEGINBEGINBEGINBEGIN
ENDENDENDENDENDENDENDEND
test test_exceptions failed -- multiple errors occurred; run in verbose mode
for details
test_exceptions failed
1 test failed:
test_exceptions
Total duration: 1 sec
Tests result: FAILURE
Coverage.py warning: Module exceptions was never imported.
Coverage.py warning: No data was collected.
Somehow stuff is no longer ending up in stderr. That empty line is most likely
the report that get printed when its value is "".
----------
Added file: http://bugs.python.org/file46025/no-stderr.diff
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Python tracker <[email protected]>
<http://bugs.python.org/issue29048>
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