Data & AI Engineering Skills

Python Fundamentals

import numpy as np
import pandas as pd
from typing import Optional, List

# NumPy arrays with type hints
def process_array(arr: np.ndarray) -> np.ndarray:
    """Process numpy array with validation."""
    if arr.size == 0:
        raise ValueError("Empty array not allowed")
    return np.clip(arr, 0, 1)