दिन 53: Git, GitHub और Portfolio

# install: https://git-scm.com  (Windows: Git Bash)  |  check:
git --version
git config --global user.name  "Your Name"
git config --global user.email "you@example.com"
git config --global init.defaultBranch main

from pathlib import Path
root = Path("bazaarkart-sales-eda")
folders = ["data/raw", "data/processed", "notebooks", "src", "reports/figures", "app"]
for f in folders:
    (root / f).mkdir(parents=True, exist_ok=True)
(root / "src" / "__init__.py").write_text("")
(root / "src" / "clean.py").write_text('''"""Reusable cleaning functions for BazaarKart data."""
import pandas as pd

def load_sales(path: str) -> pd.DataFrame:
    df = pd.read_csv(path, parse_dates=["order_date"]).drop_duplicates()
    df["revenue"] = df["quantity"] * df["unit_price"] * (1 - df["discount"])
    return df
''')
(root / "requirements.txt").write_text("pandas==2.3.3\nmatplotlib==3.11.0\nseaborn==0.13.2\nscikit-learn==1.9.1\n")
(root / ".gitignore").write_text("__pycache__/\n.ipynb_checkpoints/\n.env\n*.joblib\ndata/raw/*.csv\n!data/raw/sample.csv\n")
for p in sorted(root.rglob("*")):
    depth = len(p.relative_to(root).parts) - 1
    print("    " * depth + ("📁 " if p.is_dir() else "📄 ") + p.name)

cd bazaarkart-sales-eda
git init                                  # start tracking this folder
git status                                # what changed?
git add README.md src/ notebooks/         # stage files
git commit -m "Add cleaning function and EDA notebook"
git log --oneline                         # history

# connect to GitHub (create an empty repo on github.com first)
git remote add origin https://github.com/<your-username>/bazaarkart-sales-eda.git
git push -u origin main

git switch -c feature/add-rfm-segments     # new branch for an experiment
# ... edit, add, commit ...
git push -u origin feature/add-rfm-segments
# On GitHub: open a Pull Request → teammate reviews → "Merge"
git switch main
git pull                                    # main now has the merged work

from pathlib import Path
readme = """# 🛒 BazaarKart 2024 Sales Analysis

**Question:** What drove BazaarKart’s ₹68.8 lakh revenue in 2024, and where should we invest in 2025?

## 🔑 Key findings
| # | Finding | Recommendation |
|---|---------|----------------|
| 1 | Oct–Nov brought **27%** of revenue in 17% of the year | Plan stock & staff 6 weeks before Diwali |
| 2 | Mumbai, Bengaluru, Delhi = **43%** of revenue | Same-day delivery in these metros |
| 3 | Bigger discounts did **not** raise quantity or rating | Replace blanket discounts with A/B-tested offers |
| 4 | 25–34 year-olds paying by UPI are the core customer | UPI cashback instead of COD promotions |

![Monthly revenue](reports/figures/monthly_revenue.png)

## 🧰 Tools
Python · pandas · Matplotlib · Seaborn · SQL (SQLite)

## 📂 Structure
```
data/        raw and processed data (raw CSVs not committed)
notebooks/   01_cleaning.ipynb, 02_eda.ipynb
src/         reusable functions (clean.py)
reports/     figures and the one-page summary
```

## ▶️ Run it
```bash
pip install -r requirements.txt
jupyter notebook notebooks/02_eda.ipynb
```

## 👤 Author
Your Name · [LinkedIn](https://www.linkedin.com/in/your-profile) · your.email@example.com
"""
Path("bazaarkart-sales-eda/README.md").write_text(readme, encoding="utf-8")
print(readme[:420] + "...")
print("README length:", len(readme.split()), "words")

### Hi, I'm Your Name 👋
Aspiring **Data Analyst / Data Scientist** · Python · SQL · Power BI · Machine Learning

📌 **Featured projects**
- 🛒 [BazaarKart Sales EDA](https://github.com/<username>/bazaarkart-sales-eda) – festive season = 27% of revenue
- 📞 [Telecom Churn Prediction](https://github.com/<username>/telecom-churn) – AUC 0.83, Streamlit app
- 🧪 [Checkout A/B Test](https://github.com/<username>/checkout-ab-test) – +2.9 pp conversion, p = 0.006

📫 your.email@example.com · [LinkedIn](https://www.linkedin.com/in/your-profile)