An exercise to help build the right mental model for Python data.
- Solution: https://memory-graph.com/#codeurl=https://raw.githubusercontent.com/bterwijn/memory_graph_videos/refs/heads/main/exercises/exercise4_mg.py&play
- Explanation: https://github.com/bterwijn/memory_graph?tab=readme-ov-file#python-data-model

The “Solution” link uses 𝗺𝗲𝗺𝗼𝗿𝘆_𝗴𝗿𝗮𝗽𝗵 to visualize execution and reveals what’s actually happening.

#Python #programming #memory_graph

Automatic data structure visualization in your IDE using 𝗺𝗲𝗺𝗼𝗿𝘆_𝗴𝗿𝗮𝗽𝗵:
- web debugger binary tree demo: https://memory-graph.com/#codeurl=https://raw.githubusercontent.com/bterwijn/memory_graph/refs/heads/main/src/bin_tree.py&timestep=0.2&play
- setup video for VS Code: https://youtu.be/23_bHcr7hqo

#Python #programming #memory_graph

An exercise to help build the right mental model for Python data.
- Solution: https://memory-graph.com/#codeurl=https://raw.githubusercontent.com/bterwijn/memory_graph_videos/refs/heads/main/exercises/exercise1.py&play
- Explanation: https://github.com/bterwijn/memory_graph?tab=readme-ov-file#python-data-model

The “Solution” link uses 𝗺𝗲𝗺𝗼𝗿𝘆_𝗴𝗿𝗮𝗽𝗵 to visualize execution and reveals what’s actually happening.

#Python #programming #memory_graph

An exercise to help build the right mental model for Python data. The “Solution” link uses 𝗺𝗲𝗺𝗼𝗿𝘆_𝗴𝗿𝗮𝗽𝗵 to visualize execution and reveals what’s actually happening:
- Solution: https://memory-graph.com/#codeurl=https://raw.githubusercontent.com/bterwijn/memory_graph_videos/refs/heads/main/exercises/exercise2.py&play
- Explanation: https://github.com/bterwijn/memory_graph?tab=readme-ov-file#python-data-model

#Python #programming #memory_graph

Understanding a data structure like linked list in Python is a lot easier when you can just see it. Linked_List demo: https://memory-graph.com/#codeurl=https://raw.githubusercontent.com/bterwijn/memory_graph/refs/heads/main/src/linked_list.py&timestep=0.2&play

𝗺𝗲𝗺𝗼𝗿𝘆_𝗴𝗿𝗮𝗽𝗵 visualizes Python objects and references, so data structures stop being abstract and become something you can debug with ease. No more endless print-debugging. No more stepping through 50 frames just to find one sneaky reference/aliasing mistake.

#Python #programming #memory_graph

An exercise to help build the right mental model for Python data. The “Solution” link uses memory_graph to visualize execution and reveals what’s actually happening:
- Solution: https://memory-graph.com/#codeurl=https://raw.githubusercontent.com/bterwijn/memory_graph_videos/refs/heads/main/exercises/exercise7.py&play
- Explanation: https://github.com/bterwijn/memory_graph?tab=readme-ov-file#python-data-model

#Python #Mutability #memory_graph

Teaching data structures in Python gets easier with 𝗺𝗲𝗺𝗼𝗿𝘆_𝗴𝗿𝗮𝗽𝗵 visualizations. Data structures are no longer abstract concepts but concrete, clear and easy to debug.

Hash_Map demo: https://memory-graph.com/#codeurl=https://raw.githubusercontent.com/bterwijn/memory_graph/refs/heads/main/src/hash_map.py&timestep=0.2&play

This Hash_Map (Hash_Table) is a Python implementation similar to 'dict'. The demo visualizes:
- adding key–value pairs
- rehashing
- lookup by key
- iterating over keys

#Python #programming #memory_graph

An exercise to help build the right mental model for Python data. The “Solution” link uses memory_graph to visualize execution and reveals what’s actually happening:
- Solution: https://memory-graph.com/#codeurl=https://raw.githubusercontent.com/bterwijn/memory_graph_videos/refs/heads/main/exercises/exercise16.py&play
- Explanation: https://github.com/bterwijn/memory_graph?tab=readme-ov-file#python-data-model

#Python #programming #memory_graph

Four options for 𝐂𝐨𝐩𝐲 in Python:

𝚒𝚖𝚙𝚘𝚛𝚝 𝚌𝚘𝚙𝚢

𝚍𝚎𝚏 𝚌𝚞𝚜𝚝𝚘𝚖_𝚌𝚘𝚙𝚢(𝚊):
... 𝚌 = 𝚊.𝚌𝚘𝚙𝚢()
... 𝚌[𝟷] = 𝚊[𝟷].𝚌𝚘𝚙𝚢()
... 𝚛𝚎𝚝𝚞𝚛𝚗 𝚌

𝚊 = [[𝟷, 𝟸], [𝟹, 𝟺]]
𝚌𝟷 = 𝚊
𝚌𝟸 = 𝚊.𝚌𝚘𝚙𝚢()
𝚌𝟹 = 𝚌𝚞𝚜𝚝𝚘𝚖_𝚌𝚘𝚙𝚢(𝚊)
𝚌𝟺 = 𝚌𝚘𝚙𝚢.𝚍𝚎𝚎𝚙𝚌𝚘𝚙𝚢(𝚊)

c1, 𝐚𝐬𝐬𝐢𝐠𝐧𝐦𝐞𝐧𝐭: nothing is copied, everything is shared
c2, 𝐬𝐡𝐚𝐥𝐥𝐨𝐰 𝐜𝐨𝐩𝐲: first value is copied, underlying is shared
c3, 𝐜𝐮𝐬𝐭𝐨𝐦 𝐜𝐨𝐩𝐲: you decide what is copied and shared
c4, 𝐝𝐞𝐞𝐩 𝐜𝐨𝐩𝐲: everything is copied, nothing is shared

see: https://memory-graph.com/#breakpoints=8&continues=1&play

#Python #programming #memory_graph

An exercise to help build the right mental model for Python data. The “Solution” link uses memory_graph to visualize execution and reveals what’s actually happening:
- Solution: https://memory-graph.com/#codeurl=https://raw.githubusercontent.com/bterwijn/memory_graph_videos/refs/heads/main/exercises/exercise15.py&play
- Explanation: https://github.com/bterwijn/memory_graph?tab=readme-ov-file#python-data-model

#Python #programming #memory_graph