Karl Nelson <nelso...@llnl.gov> added the comment:
Without the pyc everything goes fine...
```
...
_bootlocale' # <_frozen_importlib_external.SourceFileLoader object at
0x00000222E9FD5A30>
import 'site' # <_frozen_importlib_external.SourceFileLoader object at
0x00000222E9F88F40>
Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit
(AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
# code object from
c:\users\nelson85\documents\devel\open\jpype\jpype\__init__.py
# created
'c:\\users\\nelson85\\documents\\devel\\open\\jpype\\jpype\\__pycache__\\__init__.cpython-39.pyc'
# extension module '_jpype' loaded from
'c:\\users\\nelson85\\documents\\devel\\open\\jpype\\_jpype.cp39-win_amd64.pyd'
# extension module '_jpype' executed from
'c:\\users\\nelson85\\documents\\devel\\open\\jpype\\_jpype.cp39-win_amd64.pyd'
import '_jpype' # <_frozen_importlib_external.ExtensionFileLoader object at
0x00000222EA4C6250>
#
c:\users\nelson85\documents\devel\open\jpype\jpype\__pycache__\_jinit.cpython-39.pyc
matches c:\users\nelson85\documents\devel\open\jpype\jpype\_jinit.py
# code o
...
```
With the pyc file, failure...
```
...
_bootlocale' # <_frozen_importlib_external.SourceFileLoader object at
0x0000015278445A30>
import 'site' # <_frozen_importlib_external.SourceFileLoader object at
0x00000152783F8F40>
Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit
(AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
#
c:\users\nelson85\documents\devel\open\jpype\jpype\__pycache__\__init__.cpython-39.pyc
matches c:\users\nelson85\documents\devel\open\jpype\jpype\__init__.py
# code object from
'c:\\users\\nelson85\\documents\\devel\\open\\jpype\\jpype\\__pycache__\\__init__.cpython-39.pyc'
Traceback (most recent call last):
File "C:\Users\nelson85\Documents\test.py", line 1, in <module>
import jpype
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 790, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "c:\users\nelson85\documents\devel\open\jpype\jpype\__init__.py", line
18, in <module>
import _jpype
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 666, in _load_unlocked
File "<frozen importlib._bootstrap>", line 565, in module_from_spec
File "<frozen importlib._bootstrap_external>", line 1108, in create_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
ImportError: DLL load failed while importing _jpype: A dynamic link library
(DLL) initialization routine failed.
# clear builtins._
# clear sys.path
# clear sys.argv
# clear sys.ps1
# clear sys.ps2
# clear sys.last_type
# clear sys.last_value
# clear sys.last_traceback
# destroy jpype
# clear sys.path_hooks
# clear sys.path_importer_cache
# clear sys.meta_path
# clear sys.__interactivehook__
# restore sys.stdin
# restore sys.stdout
# restore sys.stderr
...
```
I see the codecs all get loaded earlier in the trace, so that can't be the
issue. There were no differences (other than memory addresses) up to this
point. So it must be going wrong at bootstrap_external:1108.
So guessing from the message we failed in.
```
def exec_module(self, module):
"""Initialize an extension module"""
_bootstrap._call_with_frames_removed(_imp.exec_dynamic, module)
_bootstrap._verbose_message('extension module {!r} executed from {!r}',
self.name, self.path)
```
After that point it gets really fuzzy. I would guess we are going to
import.c#_imp_create_dynamic_impl which takes us to
_PyImport_LoadDynamicModuleWithSpec. But I will need some time to read code to
see if this guess is correct.
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue42529>
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