mirror of
https://github.com/bringout/oca-ocb-core.git
synced 2026-04-18 12:12:00 +02:00
dd3f495ba4
Convert odoo.addons.__path__ to list before concatenation with [root_path]
to fix TypeError when using Python 3.7+ namespace packages.
Error: unsupported operand type(s) for +: '_NamespacePath' and 'list'
Location: odoo/tools/misc.py:169
Added documentation explaining the fix in docs/PATCH_ADDONS_PATH.md
🤖 assisted by claude
48 lines
1.4 KiB
Markdown
48 lines
1.4 KiB
Markdown
# Fix for _NamespacePath Concatenation Error
|
|
|
|
## Issue
|
|
|
|
After upgrading, Odoo failed to start with the following error:
|
|
|
|
```
|
|
TypeError: unsupported operand type(s) for +: '_NamespacePath' and 'list'
|
|
```
|
|
|
|
This occurred in `odoo/tools/misc.py:169` in the `file_path()` function.
|
|
|
|
## Root Cause
|
|
|
|
In Python 3.7+, namespace packages use `_NamespacePath` objects for the `__path__` attribute. This special type cannot be directly concatenated with a Python list using the `+` operator.
|
|
|
|
The problematic code was:
|
|
```python
|
|
addons_paths = odoo.addons.__path__ + [root_path]
|
|
```
|
|
|
|
When `odoo.addons.__path__` is a `_NamespacePath` object, attempting to add it to a list `[root_path]` raises a `TypeError`.
|
|
|
|
## Solution
|
|
|
|
Convert the `_NamespacePath` to a list before concatenation:
|
|
|
|
```python
|
|
addons_paths = list(odoo.addons.__path__) + [root_path]
|
|
```
|
|
|
|
## File Modified
|
|
|
|
- `odoo-bringout-oca-ocb-base/odoo/tools/misc.py` line 169
|
|
|
|
## Related Code
|
|
|
|
The `file_path()` function is used throughout Odoo to:
|
|
- Verify file paths under known `addons_path` directories
|
|
- Locate module resources (icons, static files, etc.)
|
|
- Validate file access for security purposes
|
|
|
|
This fix ensures the function can properly construct the list of addon paths to search.
|
|
|
|
## References
|
|
|
|
- Python namespace packages: [PEP 420](https://www.python.org/dev/peps/pep-0420/)
|
|
- Working commit reference: 3f19943cec2680164696765266fc0cdb4e9220c5
|