Hi, I am unsure of what you want me todo. The issue was really only about following recommendation in the python docs and not use the identifier __package__ in your code. We run Python embedded and prepackage all modules needed in a zip-file. We can not currently put pydantic in such a zip-file. Regards, Johan

Hi, I can reproduce the error under Windows with Python3.9. Essentially by putting the pydantic code in a zip-file and use that instead of the ‘pydantic’ folder under site-packages. The real context for me is when we use Python embedded into a C++ executable, and all support libraries we use go into a zip-file. The following steps exemplifies how to get the error outside the ‘embedded’ context: 0. Install Python39 under Windows in path ‘c:\Python39’ 1. C:\tmp\testpydantic>c:\Python39\Scripts\pip.exe install pydantic Collecting pydantic Downloading pydantic-2.7.1-py3-none-any.whl (409 kB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 409.3/409.3 KB 8.5 MB/s eta 0:00:00 Collecting pydantic-core==2.18.2 Downloading pydantic_core-2.18.2-cp39-none-win_amd64.whl (1.9 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.9/1.9 MB 15.3 MB/s eta 0:00:00 Collecting annotated-types>=0.4.0 Using cached annotated_types-0.6.0-py3-none-any.whl (12 kB) Collecting typing-extensions>=4.6.1 Using cached typing_extensions-4.11.0-py3-none-any.whl (34 kB) Installing collected packages: typing-extensions, annotated-types, pydantic-core, pydantic Successfully installed annotated-types-0.6.0 pydantic-2.7.1 pydantic-core-2.18.2 typing-extensions-4.11.0 WARNING: You are using pip version 22.0.4; however, version 24.0 is available. You should consider upgrading via the 'C:\Python39\python.exe -m pip install --upgrade pip' command. 2. Under: C:\Python39\Lib\site-packages, create a ‘pydantic.zip’ from ‘C:\Python39\Lib\site-packages\pydantic’ 3. Rename folder ‘C:\Python39\Lib\site-packages\pydantic’ to ‘C:\Python39\Lib\site-packages\xxpydantic’ 4. Move ‘pydantic.zip’ to ‘C:\tmp\testpydantic’ 5. set PYTHONPATH=c:\tmp\testpydantic\pydantic.zip 6. C:\tmp\testpydantic>c:\Python39\python.exe Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:36:42) [MSC v.1929 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information.

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<frozen importlib._bootstrap>", line 1055, in _handle_fromlist File "c:\tmp\testpydantic\pydantic.zip\pydantic\__init__.py", line 389, in __getattr__ File "c:\Python39\lib\importlib\__init__.py", line 122, in import_module raise TypeError(msg.format(name)) TypeError: the 'package' argument is required to perform a relative import for '.fields'

From: Hasan Ramezani ***@***.***> Sent: Thursday, 18 April 2024 18:04 To: pydantic/pydantic ***@***.***> Cc: Johan Andersson ***@***.***>; Mention ***@***.***> Subject: Re: [pydantic/pydantic] Use of __package__ in pydantic/__init__.py fails if imported from zip (Issue #9221) Thanks @johanandersson-tietoevrycom<https://github.com/johanandersson-tietoevrycom> for reporting this issue. As package is discouraged in docs: https://docs.python.org/3/reference/import.html, Agree, it is not recommended to use __package__. Thanks for your suggestion. Could you please help us to reproduce the problem? We need some steps to reproduce the problem then we can confirm the fix works. — Reply to this email directly, view it on GitHub<#9221 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BDUU75YHJG23FILVWWER4QTY57VGRAVCNFSM6AAAAABGDW6DK2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDANRUGM3DSMZXG4>. You are receiving this because you were mentioned.Message ID: ***@***.******@***.***>>