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One of the most common errors when working with relational databases is the “NotImplementedError: Database objects do not implement truth value testing or bool()”. How to solve this error? Continue scrolling down our article to discover!
Why dose the “NotImplementedError: Database objects do not implement truth value testing or bool()” error happen?
Djongo is a unifying approach to interfacing with databases. It’s an extension of the Django ORM framework, but it converts Python objects into MongoDB documents.
Constructing queries with Djongo is significantly simpler than writing long Pymongo queries. The storage of JSON in its raw form JSON
that is generated via the frontend is directly.
The most recent version of Python, 4.0.1 (December 8, 2021), is incompatible with Djongo and when attempting to connect your Django application to MongoDB, you might encounter the following error.
NotImplementedError: Database objects do not implement truth value testing or bool(). Please compare with None instead: database is not None
How To Handle The Error “NotImplementedError: Database objects do not implement truth value testing or bool()”?
Best approach: Downgrade pymongo
The most recent version of Python, 4.0.1 (December 8, 2021), is incompatible with Djongo. So all you have to do now is downgrade pymongo to 3.12.3. (Dec 8, 2021).
To install an earlier version, simply use the following command:
pip install pymongo==3.12.3
To remove pymongo:
pip uninstall pymongo
Conclusion
Django considered as a free and open-source, Python-based web framework that follows the model–template–views architectural pattern. It is managed through it’s owner, the Django Software Foundation, an independent foundation that was founded by the US as a 501(c)(3) non-profit
We hope you enjoyed our article about this confusing error. With this knowledge, we know that you can fix the problem “NotImplementedError: Database objects do not implement truth value testing or bool()” quickly by following these steps!
If you still have any other questions about fixing this syntax error, please leave a comment below. Thank you for reading!
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