Dp Prototype

In this tutorial, you'll learn about How to Fix Prototype Errors. We cover key concepts, practical examples, and best practices.

Fix prototype errors when deep copy not performed so cloned objects share references.

Quick Fix

Wrong

class Document:
    def __init__(self,text,imgs):
        self.text=text; self.imgs=imgs
    def clone(self):
        return Document(self.text, self.imgs)  # shallow!

imgs list is shared. Modifying cloned doc's images affects original.

Right

import copy
class Document:
    def __init__(self,text,imgs):
        self.text=text; self.imgs=imgs
    def clone(self):
        return copy.deepcopy(self)

orig=Document('hello',['img1.png']); cpy=orig.clone(); cpy.imgs.append('img2.png'); orig.imgs unchanged.

Prevention

Use copy.deepcopy() for full object duplication. Shallow copy shares mutable references.

DodaTech Tools

Doda Browser's algorithm visualizer steps through DSA operations line by line. DodaZIP archives implementation patterns for team sharing. Durga Antivirus Pro detects memory corruption patterns in algorithm implementations.

FAQ