Impossible to redeclare property in subclass

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
javascript, python
Domain
compilers

Research direction

Start by compiling the A and B example and inspect the generated JavaScript around the some property definition. Compare the output and runtime error with the Python example; done means subclass redeclaration works without Cannot redefine property while preserving the overridden getter behavior.

Written by the indexing model from the issue text.

Description

class A:
     def _get_some(self):
          return 'some'
     some = property(_get_some)

class B(A):
     def _get_some(self):
          return 'some more'
     some = property(_get_some)

in javascript it will result in error
TypeError: Cannot redefine property: some

Maybe some javascript checks or wrappers should be implemented to allow python-style property re-declaration.

Dominant language
Python
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