The value of Py_SetPath is not used to populate the configuration #82415

pablogsal · 2019-09-20T15:19:54Z

BPO	38234
Nosy	@vstinner, @ambv, @koobs, @zooba, @pablogsal, @miss-islington
PRs	bpo-38234: Fix PyConfig_Read() when Py_SetPath() was called #16298 bpo-38234: Remove _PyPathConfig.dll_path #16307 [3.8] bpo-38234: Fix PyConfig_Read() when Py_SetPath() was called (GH-16298) #16312 [3.8] bpo-38234: Fix PyConfig_Read() when Py_SetPath() was called (GH-16298) #16313 bpo-38234: Fix _PyConfig_InitPathConfig() #16335 [3.8] bpo-38234: Fix _PyConfig_InitPathConfig() (GH-16335) #16336 bpo-38234: read_pth_file() now returns PyStatus #16338 [3.8] bpo-38234: Fix Windows _PyPathConfig_Calculate() #16339 [3.8] bpo-38234: read_pth_file() now returns PyStatus (GH-16338) #16340 bpo-38234: Py_SetPath() uses the program full path #16357 bpo-38234: Add tests for Python init path config #16358 bpo-38234: test_embed: test pyvenv.cfg and pybuilddir.txt #16366 bpo-38234: Cleanup getpath.c #16367 bpo-38234: Fix test_embed pathconfig tests #16390 bpo-38234: Add test_init_setpath_config() to test_embed #16402 bpo-38234: Complete init config documentation #16404 bpo-38234: Fix test_embed.test_init_setpath_config() on FreeBSD #16406 bpo-38234: Py_Initialize() sets global path configuration #16421 [3.8] bpo-38234: Backport path configuration changes from master #16423

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2019-10-22.22:51:02.493>
created_at = <Date 2019-09-20.15:19:54.329>
labels = ['interpreter-core', 'type-bug', '3.8', '3.9']
title = 'The value of Py_SetPath is not used to populate the configuration'
updated_at = <Date 2019-10-22.22:51:02.492>
user = 'https://github.com/pablogsal'

bugs.python.org fields:

activity = <Date 2019-10-22.22:51:02.492>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2019-10-22.22:51:02.493>
closer = 'vstinner'
components = ['Interpreter Core']
creation = <Date 2019-09-20.15:19:54.329>
creator = 'pablogsal'
dependencies = []
files = []
hgrepos = []
issue_num = 38234
keywords = ['patch', '3.8regression']
message_count = 33.0
messages = ['352856', '352857', '352859', '352862', '352871', '352909', '352913', '352914', '352915', '353030', '353031', '353032', '353034', '353035', '353037', '353042', '353043', '353096', '353099', '353124', '353128', '353129', '353130', '353205', '353241', '353254', '353256', '353277', '353304', '353306', '353309', '353397', '355167']
nosy_count = 6.0
nosy_names = ['vstinner', 'lukasz.langa', 'koobs', 'steve.dower', 'pablogsal', 'miss-islington']
pr_nums = ['16298', '16307', '16312', '16313', '16335', '16336', '16338', '16339', '16340', '16357', '16358', '16366', '16367', '16390', '16402', '16404', '16406', '16421', '16423']
priority = None
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue38234'
versions = ['Python 3.8', 'Python 3.9']

pablogsal · 2019-09-20T15:19:54Z

When calling Py_SetPath(), the value that is passed in is ignored.

vstinner · 2019-09-20T15:20:59Z

It's a 3.8 regression: I set the priority to release blocker.

pablogsal · 2019-09-20T15:24:50Z

A very simple way to reproduce the bug:

Using pyInstaller, after applying these patches (to fix other Python3.8 issues)

pyinstaller/pyinstaller#4441
pyinstaller/pyinstaller#4440

you will get

Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

This is because Python will use the default value for sys.path, including the "lib" subdirectory:

/dist/hello/lib/python3.8
^----------------> This should not be here

Instead, that value should be the one that pyinstaller passes when calling Py_SetPath() here:

https://github.com/pyinstaller/pyinstaller/blob/develop/bootloader/src/pyi_pythonlib.c#L495

So it should be:

/dist/hello/python3.8

vstinner · 2019-09-20T15:43:33Z

That's a regression that I introduced between Python 3.7 and 3.8 when refactoring _PyCoreConfig/_PyPathConfig code into PyConfig/_PyPathConfig.

Previously, if Py_SetPath() was called, the specified string was used to fill config->module_search_paths. Now, this string is basically ignored.

PR 16298 fix this regression.

vstinner · 2019-09-20T16:57:05Z

Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding

I created bpo-38236 "Dump the Python path configuration at the first import error" which should ease to debug such issues.

vstinner · 2019-09-20T23:02:59Z

New changeset c422167 by Victor Stinner in branch 'master':
bpo-38234: Remove _PyPathConfig.dll_path (GH-16307)
c422167

vstinner · 2019-09-20T23:50:20Z

New changeset e267793 by Victor Stinner in branch 'master':
bpo-38234: Fix PyConfig_Read() when Py_SetPath() was called (GH-16298)
e267793

vstinner · 2019-09-21T00:13:17Z

New changeset 9f3dcf8 by Victor Stinner in branch '3.8':
[3.8] bpo-38234: Fix PyConfig_Read() when Py_SetPath() was called (GH-16298) (GH-16313)
9f3dcf8

vstinner · 2019-09-21T00:13:48Z

When calling Py_SetPath(), the value that is passed in is ignored.

I fixed this regression. Thanks for the bug report.

zooba · 2019-09-23T15:09:30Z

Why are we keeping the DLL path around at all? It should only be being used in 1-2 places during path calculation.

vstinner · 2019-09-23T15:16:44Z

Steve:

Why are we keeping the DLL path around at all? It should only be being used in 1-2 places during path calculation.

_PyPathConfig_Init() initializes _Py_dll_path global variable which is only used by _Py_CheckPython3(). _Py_CheckPython3() is called at each _PyImport_FindSharedFuncptrWindows() call which is used by _PyImport_LoadDynamicModuleWithSpec() (to import a .pyd extension). I tried to minimize my changes to fix the issue, I tried to leave _Py_CheckPython3() unchanged. But I made one change in _Py_CheckPython3(): it handles the case _Py_dll_path=NULL... which should never occur, but I wasn't 100% sure that it really can never occur.

Python 3.6 (before my init work), _Py_CheckPython3() used "static wchar_t dllpath[MAXPATHLEN+1];": it was less important when dllpath is initialized.

--

_PyPathConfig_Calculate() of PC/getpathp.c now uses a temporary variable which stores the result of _Py_GetDLLPath().

zooba · 2019-09-23T15:39:54Z

_PyPathConfig_Init() initializes _Py_dll_path global variable which is only used by _Py_CheckPython3().

Ah okay, maybe I'll take the time later on (in a separate issue) to get rid of it fully. We may as well load python3.dll at startup anyway, it's not expensive.

vstinner · 2019-09-23T16:12:35Z

When calling Py_SetPath(), the value that is passed in is ignored.

Hum, in fact the bug was even worse: Py_SetPythonHome() and Py_SetProgramName() calls are also ignored. I'm not sure when I introduced these regressions.

PR 16335 fix this bug as well.

vstinner · 2019-09-23T16:47:41Z

New changeset 9c42f8c by Victor Stinner in branch 'master':
bpo-38234: Fix _PyConfig_InitPathConfig() (GH-16335)
9c42f8c

vstinner · 2019-09-23T17:50:32Z

New changeset 3f5409a by Victor Stinner in branch '3.8':
bpo-38234: Fix _PyConfig_InitPathConfig() (GH-16335) (GH-16336)
3f5409a

vstinner · 2019-09-23T22:55:52Z

New changeset 85ce0a7 by Victor Stinner in branch 'master':
bpo-38234: read_pth_file() now returns PyStatus (GH-16338)
85ce0a7

miss-islington · 2019-09-23T23:16:57Z

New changeset 7f7cd89 by Miss Islington (bot) in branch '3.8':
bpo-38234: read_pth_file() now returns PyStatus (GH-16338)
7f7cd89

vstinner · 2019-09-24T15:44:30Z

New changeset 1ce152a by Victor Stinner in branch 'master':
bpo-38234: Py_SetPath() uses the program full path (GH-16357)
1ce152a

vstinner · 2019-09-24T16:21:08Z

New changeset bb6bf7d by Victor Stinner in branch 'master':
bpo-38234: Add tests for Python init path config (GH-16358)
bb6bf7d

vstinner · 2019-09-25T00:10:38Z

New changeset 52ad33a by Victor Stinner in branch 'master':
bpo-38234: test_embed: test pyvenv.cfg and pybuilddir.txt (GH-16366)
52ad33a

vstinner · 2019-09-25T00:54:28Z

New changeset 221fd84 by Victor Stinner in branch 'master':
bpo-38234: Cleanup getpath.c (GH-16367)
221fd84

vstinner · 2019-09-25T00:57:20Z

The new tests fail on macOS.

x86-64 High Sierra 3.x:
https://buildbot.python.org/all/#/builders/145/builds/2469

======================================================================
FAIL: test_init_pybuilddir (test.test_embed.InitConfigTests)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/test/test_embed.py", line 1130, in test_init_pybuilddir
    self.check_all_configs("test_init_compat_config", config,
  File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/test/test_embed.py", line 681, in check_all_configs
    self.check_config(configs, expected_config)
  File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/test/test_embed.py", line 613, in check_config
    self.assertEqual(config, expected)
AssertionError: {'_co[655 chars]ne, 'module_search_paths': ['/Users/buildbot/b[1407 chars]': 1} != {'_co[655 chars]ne, 'executable': '/var/folders/sy/9hwmqyx14s1[1383 chars]': 1}
  {'_config_init': 1,
   '_init_main': 1,
   '_install_importlib': 1,
   'argv': [''],
   'base_exec_prefix': '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target',
-  'base_executable': '/private/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmp2a98rb5k/_testembed',
?

+  'base_executable': '/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmp2a98rb5k/_testembed',
   'base_prefix': '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target',
   'buffered_stdio': 1,
   'bytes_warning': 0,
   'check_hash_pycs_mode': 'default',
   'configure_c_stdio': 0,
   'dev_mode': 0,
   'dump_refs': 0,
   'exec_prefix': '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target',
-  'executable': '/private/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmp2a98rb5k/_testembed',
?                 --------

+  'executable': '/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmp2a98rb5k/_testembed',
   'faulthandler': 0,
   'hash_seed': 0,
   'home': None,
   'import_time': 0,
   'inspect': 0,
   'install_signal_handlers': 1,
   'interactive': 0,
   'isolated': 0,
   'malloc_stats': 0,
   'module_search_paths': ['/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target/lib/python39.zip',
                           '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib',
                           '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/build/lib.macosx-10.13-x86_64-3.9-pydebug',
                           '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target/lib/python39.zip',
                           '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target/lib/python3.9',
-                          '/private/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmp2a98rb5k/libdir'],
?

+ '/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmp2a98rb5k/libdir'],
'optimization_level': 0,
'parse_argv': 0,
'parser_debug': 0,
'pathconfig_warnings': 1,
'prefix': '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target',
'program_name': './_testembed',
'pycache_prefix': None,
'pythonpath_env': '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target/lib/python39.zip:/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib:/Users/buildbot/buildarea/3.x.billenstein-sierra/build/build/lib.macosx-10.13-x86_64-3.9-pydebug',
'quiet': 0,
'run_command': None,
'run_filename': None,
'run_module': None,
'show_alloc_count': 0,
'show_ref_count': 0,
'site_import': 1,
'skip_source_first_line': 0,
'tracemalloc': 0,
'use_environment': 1,
'use_hash_seed': 0,
'user_site_directory': 1,
'verbose': 0,
'warnoptions': [],
'write_bytecode': 1,
'xoptions': []}

======================================================================
FAIL: test_init_pyvenv_cfg (test.test_embed.InitConfigTests)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/test/test_embed.py", line 1182, in test_init_pyvenv_cfg
    self.check_all_configs("test_init_compat_config", config,
  File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/test/test_embed.py", line 681, in check_all_configs
    self.check_config(configs, expected_config)
  File "/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib/test/test_embed.py", line 613, in check_config
    self.assertEqual(config, expected)
AssertionError: {'_co[655 chars]ne, 'module_search_paths': ['/Users/buildbot/b[1416 chars]': 1} != {'_co[655 chars]ne, 'executable': '/var/folders/sy/9hwmqyx14s1[1400 chars]': 1}
  {'_config_init': 1,
   '_init_main': 1,
   '_install_importlib': 1,
   'argv': [''],
   'base_exec_prefix': '/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmprrz3csek',
-  'base_executable': '/private/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmpczgnz4r3/_testembed',
?

+  'base_executable': '/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmpczgnz4r3/_testembed',
   'base_prefix': '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target',
   'buffered_stdio': 1,
   'bytes_warning': 0,
   'check_hash_pycs_mode': 'default',
   'configure_c_stdio': 0,
   'dev_mode': 0,
   'dump_refs': 0,
   'exec_prefix': '/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmprrz3csek',
-  'executable': '/private/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmpczgnz4r3/_testembed',
?

+ 'executable': '/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmpczgnz4r3/_testembed',
'faulthandler': 0,
'hash_seed': 0,
'home': None,
'import_time': 0,
'inspect': 0,
'install_signal_handlers': 1,
'interactive': 0,
'isolated': 0,
'malloc_stats': 0,
'module_search_paths': ['/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target/lib/python39.zip',
'/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib',
'/Users/buildbot/buildarea/3.x.billenstein-sierra/build/build/lib.macosx-10.13-x86_64-3.9-pydebug',
'/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target/lib/python39.zip',
'/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target/lib/python3.9',
'/var/folders/sy/9hwmqyx14s11577cvgzwf2v40000gt/T/tmprrz3csek/lib/python3.9/lib-dynload'],
'optimization_level': 0,
'parse_argv': 0,
'parser_debug': 0,
'pathconfig_warnings': 1,
'prefix': '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target',
'program_name': './_testembed',
'pycache_prefix': None,
'pythonpath_env': '/Users/buildbot/buildarea/3.x.billenstein-sierra/build/target/lib/python39.zip:/Users/buildbot/buildarea/3.x.billenstein-sierra/build/Lib:/Users/buildbot/buildarea/3.x.billenstein-sierra/build/build/lib.macosx-10.13-x86_64-3.9-pydebug',
'quiet': 0,
'run_command': None,
'run_filename': None,
'run_module': None,
'show_alloc_count': 0,
'show_ref_count': 0,
'site_import': 1,
'skip_source_first_line': 0,
'tracemalloc': 0,
'use_environment': 1,
'use_hash_seed': 0,
'user_site_directory': 1,
'verbose': 0,
'warnoptions': [],
'write_bytecode': 1,
'xoptions': []}

vstinner · 2019-09-25T00:58:33Z

And on FreeBSD.

AMD64 FreeBSD CURRENT Shared 3.x:
https://buildbot.python.org/all/#/builders/168/builds/1510

======================================================================
FAIL: test_init_pybuilddir (test.test_embed.InitConfigTests)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/test/test_embed.py", line 1130, in test_init_pybuilddir
    self.check_all_configs("test_init_compat_config", config,
  File "/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/test/test_embed.py", line 681, in check_all_configs
    self.check_config(configs, expected_config)
  File "/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/test/test_embed.py", line 613, in check_config
    self.assertEqual(config, expected)
AssertionError: {'_co[671 chars]ne, 'module_search_paths': ['/usr/home/buildbo[1297 chars]': 1} != {'_co[671 chars]ne, 'executable': '/tmp/tmpsa4mgwz2/_testembed[1285 chars]': 1}
  {'_config_init': 1,
   '_init_main': 1,
   '_install_importlib': 1,
   'argv': [''],
   'base_exec_prefix': '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target',
-  'base_executable': '/var/tmp/tmpsa4mgwz2/_testembed',
?

+  'base_executable': '/tmp/tmpsa4mgwz2/_testembed',
   'base_prefix': '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target',
   'buffered_stdio': 1,
   'bytes_warning': 0,
   'check_hash_pycs_mode': 'default',
   'configure_c_stdio': 0,
   'dev_mode': 0,
   'dump_refs': 0,
   'exec_prefix': '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target',
-  'executable': '/var/tmp/tmpsa4mgwz2/_testembed',
?                 ----

+  'executable': '/tmp/tmpsa4mgwz2/_testembed',
   'faulthandler': 0,
   'hash_seed': 0,
   'home': None,
   'import_time': 0,
   'inspect': 0,
   'install_signal_handlers': 1,
   'interactive': 0,
   'isolated': 0,
   'malloc_stats': 0,
   'module_search_paths': ['/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target/lib/python39.zip',
                           '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib',
                           '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/build/lib.freebsd-13.0-CURRENT-amd64-3.9-pydebug',
                           '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target/lib/python39.zip',
                           '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target/lib/python3.9',
-                          '/var/tmp/tmpsa4mgwz2/libdir'],
?

+ '/tmp/tmpsa4mgwz2/libdir'],
'optimization_level': 0,
'parse_argv': 0,
'parser_debug': 0,
'pathconfig_warnings': 1,
'prefix': '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target',
'program_name': './_testembed',
'pycache_prefix': None,
'pythonpath_env': '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target/lib/python39.zip:/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib:/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/build/lib.freebsd-13.0-CURRENT-amd64-3.9-pydebug',
'quiet': 0,
'run_command': None,
'run_filename': None,
'run_module': None,
'show_alloc_count': 0,
'show_ref_count': 0,
'site_import': 1,
'skip_source_first_line': 0,
'tracemalloc': 0,
'use_environment': 1,
'use_hash_seed': 0,
'user_site_directory': 1,
'verbose': 0,
'warnoptions': [],
'write_bytecode': 1,
'xoptions': []}

======================================================================
FAIL: test_init_pyvenv_cfg (test.test_embed.InitConfigTests)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/test/test_embed.py", line 1182, in test_init_pyvenv_cfg
    self.check_all_configs("test_init_compat_config", config,
  File "/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/test/test_embed.py", line 681, in check_all_configs
    self.check_config(configs, expected_config)
  File "/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/test/test_embed.py", line 613, in check_config
    self.assertEqual(config, expected)
AssertionError: {'_co[671 chars]ne, 'module_search_paths': ['/usr/home/buildbo[1216 chars]': 1} != {'_co[671 chars]ne, 'executable': '/tmp/tmpszvtbyq4/_testembed[1208 chars]': 1}
  {'_config_init': 1,
   '_init_main': 1,
   '_install_importlib': 1,
   'argv': [''],
   'base_exec_prefix': '/tmp/tmpr0gyjdqs',
-  'base_executable': '/var/tmp/tmpszvtbyq4/_testembed',
?

+  'base_executable': '/tmp/tmpszvtbyq4/_testembed',
   'base_prefix': '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target',
   'buffered_stdio': 1,
   'bytes_warning': 0,
   'check_hash_pycs_mode': 'default',
   'configure_c_stdio': 0,
   'dev_mode': 0,
   'dump_refs': 0,
   'exec_prefix': '/tmp/tmpr0gyjdqs',
-  'executable': '/var/tmp/tmpszvtbyq4/_testembed',
?

+ 'executable': '/tmp/tmpszvtbyq4/_testembed',
'faulthandler': 0,
'hash_seed': 0,
'home': None,
'import_time': 0,
'inspect': 0,
'install_signal_handlers': 1,
'interactive': 0,
'isolated': 0,
'malloc_stats': 0,
'module_search_paths': ['/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target/lib/python39.zip',
'/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib',
'/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/build/lib.freebsd-13.0-CURRENT-amd64-3.9-pydebug',
'/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target/lib/python39.zip',
'/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target/lib/python3.9',
'/tmp/tmpr0gyjdqs/lib/python3.9/lib-dynload'],
'optimization_level': 0,
'parse_argv': 0,
'parser_debug': 0,
'pathconfig_warnings': 1,
'prefix': '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target',
'program_name': './_testembed',
'pycache_prefix': None,
'pythonpath_env': '/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/target/lib/python39.zip:/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib:/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/build/lib.freebsd-13.0-CURRENT-amd64-3.9-pydebug',
'quiet': 0,
'run_command': None,
'run_filename': None,
'run_module': None,
'show_alloc_count': 0,
'show_ref_count': 0,
'site_import': 1,
'skip_source_first_line': 0,
'tracemalloc': 0,
'use_environment': 1,
'use_hash_seed': 0,
'user_site_directory': 1,
'verbose': 0,
'warnoptions': [],
'write_bytecode': 1,
'xoptions': []}

vstinner · 2019-09-25T14:30:39Z

New changeset 00508a7 by Victor Stinner in branch 'master':
bpo-38234: Fix test_embed pathconfig tests (GH-16390)
00508a7

vstinner · 2019-09-26T00:22:48Z

New changeset 8bf39b6 by Victor Stinner in branch 'master':
bpo-38234: Add test_init_setpath_config() to test_embed (GH-16402)
8bf39b6

vstinner · 2019-09-26T01:15:12Z

New changeset 88feaec by Victor Stinner in branch 'master':
bpo-38234: Complete init config documentation (GH-16404)
88feaec

vstinner · 2019-09-26T02:01:53Z

New changeset 49d99f0 by Victor Stinner in branch 'master':
bpo-38234: Fix test_embed.test_init_setpath_config() on FreeBSD (GH-16406)
49d99f0

vstinner · 2019-09-26T07:48:40Z

Oh, there is a regression:

vstinner@apu$ ./python
Python 3.9.0a0 (heads/master:88feaecd46, Sep 26 2019, 03:26:37) 
[GCC 9.2.1 20190827 (Red Hat 9.2.1-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import _tkinter
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]

PyInit__tkinter() calls Py_GetProgramName(). But Python initialization no longer copies PyConfig path configuration into _Py_path_info (the global configuration). So Python has to recompute the path configuration which logs 3 warnings.

vstinner · 2019-09-26T13:52:04Z

New changeset 12f2f17 by Victor Stinner in branch 'master':
bpo-38234: Py_Initialize() sets global path configuration (GH-16421)
12f2f17

vstinner · 2019-09-26T14:17:38Z

New changeset 96c8475 by Victor Stinner in branch '3.8':
[3.8] bpo-38234: Backport init path config changes from master (GH-16423)
96c8475

vstinner · 2019-09-26T14:29:39Z

Oh, there is a regression: (...) PyInit__tkinter() calls Py_GetProgramName(). But Python initialization no longer copies PyConfig path configuration into _Py_path_info (the global configuration). So Python has to recompute the path configuration which logs 3 warnings.

It's fixed by commit 12f2f17 which adds new tests to prevent any regression.

vstinner · 2019-09-27T20:05:12Z

Oh, the main issue has been fixed and I added a lot of tests. So I remove the "release blocker" priority.

I would like to keep the issue open since I plan to do one more change: use PyWideStringList in _PyPathConfig for module_search_paths to support paths which contains DELIM (":" on Unix).

vstinner · 2019-10-22T22:51:02Z

The initial issue has been fixed, I close the issue.

I would like to keep the issue open since I plan to do one more change: use PyWideStringList in _PyPathConfig for module_search_paths to support paths which contains DELIM (":" on Unix).

I may use bpo-38353 instead for that. See also bpo-31210.

pablogsal added 3.8 (EOL) end of life 3.9 only security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) type-bug An unexpected behavior, bug, or error labels Sep 20, 2019

vstinner added the release-blocker label Sep 20, 2019

vstinner closed this as completed Sep 21, 2019

vstinner removed the release-blocker label Sep 21, 2019

vstinner reopened this Sep 23, 2019

pablogsal added the release-blocker label Sep 26, 2019

vstinner removed the release-blocker label Sep 27, 2019

vstinner closed this as completed Oct 22, 2019

ezio-melotti transferred this issue from another repository Apr 10, 2022

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The value of Py_SetPath is not used to populate the configuration #82415

The value of Py_SetPath is not used to populate the configuration #82415

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The value of Py_SetPath is not used to populate the configuration #82415

The value of Py_SetPath is not used to populate the configuration #82415

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