Project Status¶

There is support for producing CPython distributions for Windows, macOS, and Linux. All distributions are highly self-contained and have limited shared library dependencies.

Target Notes¶

Linux x86_64 and aarch64 targets (x86_64-* and aarch64-*) are built on native hardware using a modern LLVM toolchain.

All other architectures are cross-compiled on x86_64 using Debian-provided cross-compilation tools. As a result, these targets are not as highly optimized as aarch64 and x86_64 targets.

Test Failures¶

This repository contains a test-distribution.py script that can be used to run the Python test harness from a distribution archive.

Currently, this script is only used to validate a limited set of functionality for each distribution. The entire Python test harness is not run on a regular basis. Work is ongoing to perform this type of testing on a regular basis.

The details below on known failing and skipped tests are out of date. In the future, this information will be updated and presented elsewhere.

Here, we track the various known failures when running test-distribution.py --stdlib -- /path/to/distribution.tar.zst -u all.

`test__locale`¶

Known failing on: Windows

This test fails as follows:

======================================================================
ERROR: test_float_parsing (test.test__locale._LocaleTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\gps\AppData\Local\Temp\tmpjx7a33kd\python\install\lib\test\test__locale.py", line 184, in test_float_parsing
    if localeconv()['decimal_point'] != '.':
UnicodeDecodeError: 'locale' codec can't decode byte 0xa0 in position 0: decoding error

======================================================================
ERROR: test_lc_numeric_localeconv (test.test__locale._LocaleTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\gps\AppData\Local\Temp\tmpjx7a33kd\python\install\lib\test\test__locale.py", line 130, in test_lc_numeric_localeconv
    formatting = localeconv()
UnicodeDecodeError: 'locale' codec can't decode byte 0xa0 in position 0: decoding error

----------------------------------------------------------------------

`test_locale`¶

Known failing on: Windows

This test fails on Windows:

======================================================================
ERROR: test_getsetlocale_issue1813 (test.test_locale.TestMiscellaneous)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\gps\AppData\Local\Temp\tmp8m94v2m5\python\install\lib\test\test_locale.py", line 567, in test_getsetlocale_issue1813
    locale.setlocale(locale.LC_CTYPE, loc)
  File "C:\Users\gps\AppData\Local\Temp\tmp8m94v2m5\python\install\lib\locale.py", line 608, in setlocale
    return _setlocale(category, locale)
locale.Error: unsupported locale setting

----------------------------------------------------------------------

`test_subprocess`¶

Known Failing on: Linux

This fails in the following manner:

test_executable_without_cwd (test.test_subprocess.ProcessTestCaseNoPoll) ... Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Fatal Python error: initfsencoding: Unable to get the locale encoding
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007fd77c231740 (most recent call first):
FAIL

======================================================================
FAIL: test_executable_without_cwd (test.test_subprocess.ProcessTestCaseNoPoll)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/tmp8hef0kr4/python/install/lib/python3.7/test/test_subprocess.py", line 436, in test_executable_without_cwd
    executable=sys.executable)
  File "/tmp/tmp8hef0kr4/python/install/lib/python3.7/test/test_subprocess.py", line 355, in _assert_cwd
    self.assertEqual(47, p.returncode)
AssertionError: 47 != -6

We’re unsure what is going on here. The error from initfsencoding is what happens when the first import during Py_Initialize() fails. So it appears the test somehow can’t locate the Python standard library.

`test_tk`¶

Known Failing on: Linux

This fails in the following manner:

======================================================================
FAIL: test_from (tkinter.test.test_tkinter.test_widgets.ScaleTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/tmpoqqjd5gi/python/install/lib/python3.7/tkinter/test/test_tkinter/test_widgets.py", line 867, in test_from
    self.checkFloatParam(widget, 'from', 100, 14.9, 15.1, conv=float_round)
  File "/tmp/tmpoqqjd5gi/python/install/lib/python3.7/tkinter/test/widget_tests.py", line 106, in checkFloatParam
    self.checkParam(widget, name, value, conv=conv, **kwargs)
  File "/tmp/tmpoqqjd5gi/python/install/lib/python3.7/tkinter/test/widget_tests.py", line 63, in checkParam
    self.assertEqual2(widget[name], expected, eq=eq)
  File "/tmp/tmpoqqjd5gi/python/install/lib/python3.7/tkinter/test/widget_tests.py", line 47, in assertEqual2
    self.assertEqual(actual, expected, msg)
AssertionError: 14.9 != 15.0

This seems like a minor issue and might be a bug in the test itself.

`test_winconsoleio`¶

This fails as follows:

======================================================================
ERROR: test_ctrl_z (test.test_winconsoleio.WindowsConsoleIOTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\gps\AppData\Local\Temp\tmp8m94v2m5\python\install\lib\test\test_winconsoleio.py", line 190, in test_ctrl_z
    a, b = stdin.read(1), stdin.readall()
OSError: [WinError 87] The parameter is incorrect

======================================================================
ERROR: test_input (test.test_winconsoleio.WindowsConsoleIOTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\gps\AppData\Local\Temp\tmp8m94v2m5\python\install\lib\test\test_winconsoleio.py", line 144, in test_input
    self.assertStdinRoundTrip('abc123')
  File "C:\Users\gps\AppData\Local\Temp\tmp8m94v2m5\python\install\lib\test\test_winconsoleio.py", line 137, in assertStdinRoundTrip
    actual = input()
OSError: [WinError 87] The parameter is incorrect

======================================================================
FAIL: test_partial_reads (test.test_winconsoleio.WindowsConsoleIOTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\gps\AppData\Local\Temp\tmp8m94v2m5\python\install\lib\test\test_winconsoleio.py", line 166, in test_partial_reads
    self.assertEqual(actual, expected, 'stdin.read({})'.format(read_count))
AssertionError: b'\r\n' != b'\xcf\xbc\xd1\x9e\xd0\xa2\xce\xbb\xd0\xa4\xd0\x99\r\n' : stdin.read(1)

======================================================================
FAIL: test_partial_surrogate_reads (test.test_winconsoleio.WindowsConsoleIOTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\gps\AppData\Local\Temp\tmp8m94v2m5\python\install\lib\test\test_winconsoleio.py", line 183, in test_partial_surrogate_reads
    self.assertEqual(actual, expected, 'stdin.read({})'.format(read_count))
AssertionError: b'\xc3\x84\r\n' != b'\xf4\x81\xbf\xbf\xf4\x81\x80\x81\r\n' : stdin.read(1)

----------------------------------------------------------------------

Ran 10 tests in 0.006s

FAILED (failures=2, errors=2)
test test_winconsoleio failed
0:00:00 Re-running test__locale in verbose mode
test_float_parsing (test.test__locale._LocaleTests) ... ERROR
test_lc_numeric_basic (test.test__locale._LocaleTests) ... skipped 'nl_langinfo is not available'
test_lc_numeric_localeconv (test.test__locale._LocaleTests) ... ERROR
test_lc_numeric_nl_langinfo (test.test__locale._LocaleTests) ... skipped 'nl_langinfo is not available'

======================================================================
ERROR: test_float_parsing (test.test__locale._LocaleTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\gps\AppData\Local\Temp\tmp8m94v2m5\python\install\lib\test\test__locale.py", line 184, in test_float_parsing
    if localeconv()['decimal_point'] != '.':
UnicodeDecodeError: 'locale' codec can't decode byte 0xa0 in position 0: decoding error

======================================================================
ERROR: test_lc_numeric_localeconv (test.test__locale._LocaleTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\gps\AppData\Local\Temp\tmp8m94v2m5\python\install\lib\test\test__locale.py", line 130, in test_lc_numeric_localeconv
    formatting = localeconv()
UnicodeDecodeError: 'locale' codec can't decode byte 0xa0 in position 0: decoding error

----------------------------------------------------------------------

Test Skips¶

Linux¶

The following tests are skipped on Linux:

test_asdl_parser: test irrelevant for an installed Python
test_clinic: install/lib/Tools/clinic’ path does not exist
test_dbm_gnu: No module named ‘_gdbm’
test_devpoll: test works only on Solaris OS family
test_gdb: test_gdb only works on source builds at the moment.
test_kqueue: test works only on BSD
test_msilib: No module named ‘msilib’
test_ossaudiodev: [Errno 2] No such file or directory: ‘/dev/dsp’
test_startfile: object <module ‘os’ from ‘…/install/lib/python3.7/os.py’> has no attribute ‘startfile’
test_winconsoleio: test only relevant on win32
test_winreg: No module named ‘winreg’
test_winsound: No module named ‘winsound’
test_zipfile64: test requires loads of disk-space bytes and a long time to run

macOS¶

The following tests are skipped on macOS:

test_asdl_parser: test irrelevant for an installed Python
test_clinic: python/install/lib/Tools/clinic’ path does not exist
test_dbm_gnu: No module named ‘_gdbm’
test_devpoll: test works only on Solaris OS family
test_epoll: test works only on Linux 2.6
test_gdb: Couldn’t find gdb on the path
test_msilib: No module named ‘msilib’
test_multiprocessing_fork: test may crash on macOS (bpo-33725)
test_nis: No module named ‘nis’
test_ossaudiodev: No module named ‘ossaudiodev’
test_spwd: No module named ‘spwd’
test_startfile: object <module ‘os’ from ‘…/install/lib/python3.7/os.py’> has no attribute ‘startfile’
test_tix: tix is not built by this project
test_tk: cannot run without OS X gui process
test_ttk_guionly: cannot run without OS X gui process
test_winconsoleio: test only relevant on win32
test_winreg: No module named ‘winreg’
test_winsound: No module named ‘winsound’
test_zipfile64: test requires loads of disk-space bytes and a long time to run

Project Status¶

Target Notes¶

Test Failures¶

`test__locale`¶

`test_locale`¶

`test_subprocess`¶

`test_tk`¶

`test_winconsoleio`¶

Test Skips¶

Linux¶

macOS¶

python-build-standalone

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Related Topics

Project Status¶

Target Notes¶

Test Failures¶

test__locale¶

test_locale¶

test_subprocess¶

test_tk¶

test_winconsoleio¶

Test Skips¶

Linux¶

macOS¶

`test__locale`¶

`test_locale`¶

`test_subprocess`¶

`test_tk`¶

`test_winconsoleio`¶