# 𝑫𝒂𝒚 - 4 𝑷𝒚𝒕𝒉𝒐𝒏 𝑲𝒂 𝑫𝒂𝒊𝒍𝒚 𝑫𝒐𝒔𝒆 In Python 3.12 (the current stable standard), there are 35 reserved keywords. These are "reserved" because the Python interpreter uses them to recognize the structure of your code. Because of this, you cannot use these words as variable names, function names, or any other identifier. 𝐏𝐫𝐨-𝐓𝐢𝐩: 𝐒𝐨𝐟𝐭 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 Python also has a few "soft keywords" like match, case, and _ (used in pattern matching). These act like keywords in specific contexts but can still be used as variable names elsewhere—though it's usually better to avoid doing that to keep your code clean! 😊 Run this in your terminal or IDE: 𝐢𝐦𝐩𝐨𝐫𝐭 𝐤𝐞𝐲𝐰𝐨𝐫𝐝 # To see the list of all keywords: 𝐩𝐫𝐢𝐧𝐭(𝐤𝐞𝐲𝐰𝐨𝐫𝐝.𝐤𝐰𝐥𝐢𝐬𝐭) # To see how many there are: 𝐩𝐫𝐢𝐧𝐭(𝐥𝐞𝐧(𝐤𝐞𝐲𝐰𝐨𝐫𝐝.𝐤𝐰𝐥𝐢𝐬𝐭)) #PythonProgramming #CodingTips #SoftwareDevelopment #PythonTips #CleanCode #ProgrammingLife #DataScience #BackendDeveloper
Python Reserved Keywords in Python 3.12
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You can automate Google Drive entirely in Python. No external automation tools ! I used : Just 2 Python files to: • track new files in Google Drive • sync and categorize them automatically And 2 more Python files to: • generate embeddings • run Q&A on top of the file content The only cost involved is the LLM API used for embeddings and Q&A. Everything else runs purely in Python. All fully automated. No manual triggers. This video shows the syncing & tracking layer. PS: More Python automations coming 🐍 - - - - #AIEngineer #AIAutomation #PythonAutomation #AgenticAI #RAG
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📘 Data Structure Fundamentals in Python 1️⃣ List [] Ordered Mutable Allows duplicates Supports indexing Used for CRUD operations 2️⃣ Tuple () Ordered Immutable (cannot change) Allows duplicates Supports indexing 3️⃣ Dictionary {} Key : Value pairs Mutable Keys must be unique Access using keys 4️⃣ Set {} Unordered Mutable No duplicates No indexing
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🐍 Python Concept I Use Often: Dictionary vs Defaultdict One small choice in Python can make your code cleaner, faster, and less error-prone. Problem Counting occurrences in a list using a normal dictionary usually looks like this: counts = {} for item in data: if item in counts: counts[item] += 1 else: counts[item] = 1 It works—but it’s verbose and easy to mess up. Better Approach Using defaultdict from collections: from collections import defaultdict counts = defaultdict(int) for item in data: counts[item] += 1 Why this matters ✔ Removes conditional checks ✔ Improves readability ✔ Reduces chances of KeyError ✔ Scales well in data processing pipelines Curious—what’s your go-to Python feature that instantly improves code quality? #Python #PythonDeveloper #CleanCode #BackendDevelopment #DataEngineering #ProgrammingTips #SoftwareEngineering
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As a side project, I’ve published a new utility package to PyPI: python-toon-parser. If you’ve ever needed to convert native Python data types into the TOON format, this library handles the heavy lifting for you. It’s lightweight, easy to integrate, and focuses on maintaining data integrity during the transformation. 📦 PyPI: https://lnkd.in/d3PjHuXJ Check it out and let me know what you think! #Python #OpenSource #SoftwareEngineering #BackendDevelopment #PyPI
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Your Python script isn’t slow. It’s just doing too much… the hard way. 🐍 Over the years, a few small automation habits saved me hours: • Use 𝐥𝐢𝐬𝐭/𝐝𝐢𝐜𝐭 𝐜𝐨𝐦𝐩𝐫𝐞𝐡𝐞𝐧𝐬𝐢𝐨𝐧𝐬 instead of nested loops where possible ⚡ • 𝐏𝐮𝐬𝐡 𝐡𝐞𝐚𝐯𝐲 𝐟𝐢𝐥𝐭𝐞𝐫𝐢𝐧𝐠 𝐭𝐨 𝐒𝐐𝐋 instead of cleaning everything in Python 🗄️ • 𝐂𝐚𝐜𝐡𝐞 𝐞𝐱𝐩𝐞𝐧𝐬𝐢𝐯𝐞 𝐀𝐏𝐈 𝐫𝐞𝐬𝐩𝐨𝐧𝐬𝐞𝐬 (even a simple in‑memory dict helps) 💾 • Log less, but 𝐥𝐨𝐠 𝐬𝐦𝐚𝐫𝐭𝐞𝐫 — timestamps + key IDs > dumping full payloads 📝 • Measure with 𝐭𝐢𝐦𝐞.𝐩𝐞𝐫𝐟_𝐜𝐨𝐮𝐧𝐭𝐞𝐫() before “optimizing” ⏱️ Most automation code grows quietly. Until one day it’s a 12‑minute job that used to take 90 seconds. Friday question: What’s one tiny refactor that made your script noticeably faster? 👇 #python #automation #productivity #backend #devlife
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💡 Python Insight from Production Code One mistake I often see—even in mature codebases—is confusing raise with return. They may look similar, but they serve very different purposes. 🔸 raise Used to stop execution immediately and signal that something went wrong. It enforces correctness and makes failures explicit. 🔹 return Used to exit a function gracefully and pass a result back to the caller. It keeps control flow predictable. 📌 Real-world rule: Use raise when continuing execution would hide a bug Use return when the outcome is expected and handled Clear error handling is not about writing more code — it’s about writing honest code. 👉 Save this if you write Python professionally 👉 Share with someone who’s still mixing these up #Python #PythonProgramming #BackendDevelopment #CleanCode #SoftwareEngineering #ProgrammingTips #CodeQuality #DeveloperCommunity #TechLeadership #LearnPython #CodingBestPractices #EngineeringMindset #100DaysOfCode
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⚡ Just released FastIter, parallel iterators for Python 3.14+ For years, Python's Global Interpreter Lock (GIL) prevented threads from running Python code truly in parallel. Python 3.14 changes that. FastIter takes advantage of free-threaded mode to split work across CPU cores automatically, with 2 to 5.6x measured speedups on CPU-bound workloads. And it is written entirely in Python, no C extensions, no compiled code. Simple API, real parallelism, pure Python. If you work with large datasets, give it a try: pip install fastiter GitHub: https://lnkd.in/eKtJVsfH Feedback and contributions welcome 🙌 #Python #OpenSource #Performance #Parallelism #Python314
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Why does a += 10 give an error, but a = 2 then a += 10 works perfectly? 🤔 I made this mistake today and learned something crucial about Python's compound assignment operators. The wrong way: a += 10 # ERROR: name 'a' is not defined ❌ The right way: a = 2 # Initialize first a += 10 # Now it works! ✅ # Result: a = 12 Here's why: Compound operators like +=, -=, *=, /= are shortcuts that perform operations AND assignment together. When you write a += 10, Python actually executes a = a + 10 To add 10 to a, Python first needs to READ the current value of a. If a doesn't exist yet, there's nothing to read — hence the error! Key takeaway: Always initialize your variable before using compound operators. It's not just syntax — it's logic. Have you encountered this error before? What was your "aha!" moment with Python operators? 💡 #Python #CompoundOperators #AssignmentOperators #PythonBasics #CodingMistakes #LearnPython #ProgrammingFundamentals
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LeetCode #347 – Top K Frequent Elements | Python Implementation I implemented a bucket sort approach to find the k most frequent elements in linear time. First, a HashMap tracks the frequency of each element. Then, a frequency array (bucket) is constructed where the index represents the count and the value is a list of elements with that frequency. By traversing the buckets from highest to lowest frequency, we collect exactly k elements without needing a heap or sorting. This technique is fundamental in analytics dashboards, trending algorithms, and log aggregation systems where real-time frequency analysis is required. Key Takeaway: Bucket sort achieves O(n) time by leveraging the constraint that frequencies are bounded by the array length. This avoids the O(n log n) cost of sorting or the O(n log k) heap approach, making it optimal when the value range is known and limited. Time: O(n) | Space: O(n) #LeetCode #DataStructures #Python #BucketSort #HashMap #CodingInterview #ProblemSolving #SoftwareEngineering
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