CodeToCompass

𝙀𝙫𝙚𝙧 𝙬𝙧𝙞𝙩𝙩𝙚𝙣 𝙖 𝙡𝙤𝙤𝙥 𝙩𝙤 𝙛𝙞𝙣𝙙 𝙨𝙤𝙢𝙚𝙩𝙝𝙞𝙣𝙜 𝙞𝙣 𝙖 𝙡𝙞𝙨𝙩?
𝙔𝙚𝙖𝙝...! 𝙔𝙤𝙪’𝙧𝙚 𝙬𝙖𝙨𝙩𝙞𝙣𝙜 𝙩𝙞𝙢𝙚.

(Spoiler Alert! Long Post)

Here’s the thing:

You should use HashMaps.
(And Python gives them to you for free)

𝗖𝗼𝗻𝗳𝘂𝘀𝗲𝗱? 𝗟𝗲𝘁’𝘀 𝗯𝗿𝗲𝗮𝗸 𝗶𝘁 𝗱𝗼𝘄𝗻:

𝗕𝘂𝘁 𝘄𝗵𝗮𝘁 𝗶𝘀 𝗮 𝗛𝗮𝘀𝗵𝗠𝗮𝗽?

A data structure that stores key-value pairs.
You give it a key → it gives you the value.
No loops. No searching. Just instant access.

𝗔𝗻𝗱 𝘄𝗵𝘆 𝗦𝗵𝗼𝘂𝗹𝗱 𝗜 𝘂𝘀𝗲 𝗶𝘁?

• O(1) lookup time
• Cleaner code
• Solves 80% of your “how do I find this fast” problems

𝗢𝗵! 𝗕𝘂𝘁 𝗵𝗼𝘄 𝗱𝗼𝗲𝘀 𝗶𝘁 𝘄𝗼𝗿𝗸?

• Keys are passed through a hash function.
• That hash gives you an index.
• The value is stored there.

And guess what?

Behind the scenes:
Python uses dictionaries for this.

𝚖𝚢𝙿𝚛𝚘𝚏𝚒𝚕𝚎 = { "𝚗𝚊𝚖𝚎": "𝙸𝚖𝚝𝚒𝚊𝚣" }
𝚙𝚛𝚒𝚗𝚝(𝚖𝚢𝙿𝚛𝚘𝚏𝚒𝚕𝚎 ["𝚗𝚊𝚖𝚎"]) # 𝙸𝚖𝚝𝚒𝚊𝚣

Done. No loops. No pain.

𝗦𝗼? 𝗪𝗵𝗲𝗿𝗲 𝗦𝗵𝗼𝘂𝗹𝗱 𝗜 𝗨𝘀𝗲 𝗛𝗮𝘀𝗵𝗠𝗮𝗽𝘀?

✅ Counting things
✅ Looking things up fast
✅ Caching
✅ Grouping data

HashMaps → Write faster, smarter code.

P.S. If you want more real-world dev and coding tips like this,
I send them weekly to your inbox.
Subscribe here: code2compass.substack.com/subscribe.

P.P.S. I have something to tell you!
Want to master git in a week?
Comment "git yes!"
I'll send you a free e-book with examples and codes.


#coding #python #programming #datastructures

6 months ago (edited) | [YT] | 0

CodeToCompass

If you don’t understand graphs, you’re coding with blinders on.

Here’s the hard truth:

You can master arrays.
You can master linked lists.
But if you don’t get graphs, you're missing out on the most powerful data structure in computer science.

Graphs are everywhere:
✅ Google Maps? Graphs.
✅ Social media algorithms? Graphs.
✅ Database relationships? Graphs.
✅ AI and recommendation systems? Graphs.

Why do they matter?
Because real-world problems aren’t linear.
They're networks. Connections. Relationships.

And if you don’t know how to traverse a graph?
You’re limiting yourself.

How graphs make you a better engineer:
1️⃣ You start thinking beyond simple data structures.
2️⃣ You build more efficient and scalable solutions.
3️⃣ You solve real-world problems, not just coding exercises.

Most developers ignore graphs.
The best ones master them.

Now, I want to hear from you:
What’s the most interesting real-world use case of graphs you’ve seen? Drop it in the comments!

Want deep-dive insights like this? I send them straight to your inbox. Subscribe here: code2compass.substack.com/subscribe

(And if this made graphs finally click, hit repost so others can level up too!) 🚀

7 months ago | [YT] | 0

CodeToCompass

🚀 30-Day Python OOP Quiz – Day 8
🤯 This one confuses even experienced developers!

💡 Question:
Which of the following is NOT a key principle of OOP?

👀 Trick question? Maybe. Let’s see if you can get it right! Drop your answer below!

🔥 Don’t just scroll! Challenge yourself.
And make sure you’re subscribed to @CodeToCompass for daily Python wisdom!

7 months ago | [YT] | 0

CodeToCompass

30-Day Python OOP Quiz – Day 7
Only 1% of Python devs truly understand this… Do you?

💡 Question:
What is the correct way to define a class method in Python?

Don’t fall for the common mistake! Drop your answer below!

Subscribe to @CodeToCompass for more Python mastery!
#Python #OOP #CodeQuiz

7 months ago | [YT] | 6

CodeToCompass

30-Day Python OOP Quiz – Day 6
Most Python devs get this wrong! Can you?

Question:
In Python, what happens if you try to access a private attribute from outside its class?

Think carefully! Many developers assume the wrong answer.

👇 Drop your answer in the comments and prove your OOP skills!

Missed previous questions?
Go back and test yourself! Don’t just scroll—challenge yourself!
#Python #OOP #CodingQuiz

7 months ago | [YT] | 2

CodeToCompass

30 Days of Python OOP Quiz

Day 5: Can a Python class have multiple __init__() methods?

7 months ago | [YT] | 0

CodeToCompass

30 Days of Python OOP Quiz
...
Day 4: Which method is called when an object is deleted?

7 months ago | [YT] | 1

CodeToCompass

30 Days of Python OOP Quiz

Day 3: What happens if __str__() is not defined but __repr__() is?

7 months ago | [YT] | 10

CodeToCompass

30 Days of Python OOP Quiz

Day 2: What does __new__() do in Python?

7 months ago | [YT] | 1

CodeToCompass

30 Days of Python OOP Quiz

Day 1: What is the default access modifier in Python?

8 months ago | [YT] | 0