Friday, 21 November 2025

How much 𝗣𝘆𝘁𝗵𝗼𝗻 is enough to crack a 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘀𝘁 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄?

𝗕𝗮𝘀𝗶𝗰 𝗣𝘆𝘁𝗵𝗼𝗻 𝗦𝗸𝗶𝗹𝗹𝘀
- Data types: Lists, Dicts, Tuples, Sets
- Loops & conditionals (for, while, if-else)
- Functions & lambda expressions
- File handling (open, read, write)

📊 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀 𝘄𝗶𝘁𝗵 𝗣𝗮𝗻𝗱𝗮𝘀
- read_csv, head(), info()  
- Filtering, sorting, and grouping data
- Handling missing values
- Merging & joining DataFrames

📈 𝗗𝗮𝘁𝗮 𝗩𝗶𝘀𝘂𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻
- Matplotlib: plot(), bar(), hist()  
- Seaborn: heatmap(), pairplot(), boxplot()  
- Plot styling, titles, and legends

🧮 𝗡𝘂𝗺𝗣𝘆 & 𝗠𝗮𝘁𝗵 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻
- Arrays and broadcasting
- Vectorized operations
- Basic statistics: mean, median, std

🧩 𝗗𝗮𝘁𝗮 𝗖𝗹𝗲𝗮𝗻𝗶𝗻𝗴 & 𝗣𝗿𝗲𝗽
- Remove duplicates, rename columns
- Apply functions row-wise or column-wise
- Convert data types, parse dates

⚙️ 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗣𝘆𝘁𝗵𝗼𝗻 𝗧𝗶𝗽𝘀
- List comprehensions
- Exception handling (try-except)
- Working with APIs (requests, json)
- Automating tasks with scripts

💼 𝗣𝗿𝗮𝗰𝘁𝗶𝗰𝗮𝗹 𝗦𝗰𝗲𝗻𝗮𝗿𝗶𝗼𝘀
- Sales forecasting
- Web scraping for data
- Survey result analysis
- Excel automation with openpyxl or xlsxwriter  

✅ Must-Have Strengths: 
- Data wrangling & preprocessing
- EDA (Exploratory Data Analysis)
- Writing clean, reusable code

- Extracting insights & telling stories with data 

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