Answer
Uses reference counting.
Circular refs handled by GC.
Immutable objects are interned for performance.
Circular refs handled by GC.
Immutable objects are interned for performance.
Quick Answer
Python objects live on the heap. Each object has a reference count tracked by CPython. When you assign a = [1,2,3], the list object is created on the heap and "a" is a name binding to it. Multiple names can reference the same object (a = b = [] means a and b point to the same list). Objects are garbage collected when no references remain. Large objects may need explicit gc.collect().
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ