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Q&A Use cases for raising a 'NotImplementedError' in Python

This is in the docs. To paraphrase: Used for abstract methods that must be overridden in subclasses When the implementation is still WIP, but you want to leave a placeholder for the method name...

posted 6mo ago by matthewsnyder‭  ·  edited 6mo ago by matthewsnyder‭

Answer
#2: Post edited by user avatar matthewsnyder‭ · 2024-07-08T19:50:46Z (6 months ago)
  • This is in the [docs](https://docs.python.org/3/library/exceptions.html#NotImplementedError).
  • * abstract methods should raise this exception when they require derived classes to override the method
  • * while the class is being developed to indicate that the real implementation still needs to be added
  • It's a way to have a placeholder method name to "reserve namespace", but with the actual method body "coming soon".
  • This is in the [docs](https://docs.python.org/3/library/exceptions.html#NotImplementedError). To paraphrase:
  • * Used for abstract methods that must be overridden in subclasses
  • * When the implementation is still WIP, but you want to leave a placeholder for the method name and signature
  • It's a way to to "reserve namespace", but with the actual method body "coming soon" (from you or someone else).
#1: Initial revision by user avatar matthewsnyder‭ · 2024-07-07T19:13:57Z (6 months ago)
This is in the [docs](https://docs.python.org/3/library/exceptions.html#NotImplementedError).

*  abstract methods should raise this exception when they require derived classes to override the method
* while the class is being developed to indicate that the real implementation still needs to be added

It's a way to have a placeholder method name to "reserve namespace", but with the actual method body "coming soon".