Python Dictionary learning resource that contains everything you need to master Python dictionaries, from basic concepts to advanced techniques.
- Dictionaries are mutable - You can change their contents after creation
- Key-value pairs - Store data as associated pairs
- Unique keys - Each key can appear only once
- Fast lookups - O(1) average time complexity for access
- Dictionary comprehensions - Elegant way to create dictionaries
- Many built-in methods - get(), keys(), values(), items(), etc.
| Data Structure | Ordered | Mutable | Duplicates | Indexed | Use Case |
|---|---|---|---|---|---|
| List | ✅ | ✅ | ✅ | Numeric | General sequences |
| Tuple | ✅ | ❌ | ✅ | Numeric | Fixed collections |
| Set | ❌ | ✅ | ❌ | ❌ | Unique items |
| Dict | ✅* | ✅ | ❌ (keys) | Keys | Key-value pairs |
| String | ✅ | ❌ | ✅ | Numeric | Text data |
- Python 3.6+ installed on your system
- Basic Python knowledge (variables, functions, basic syntax)
- Jupyter Notebook (optional, for notebook experience)
- Python Dictionaries Command-Line Guide
- Complete command-line guide with interactive menu system
- Python Dictionaries Interactive Guide
- Jupyter notebooks with hands-on examples
- Existing code examples - Real-world implementations and demonstrations
Explore related topics:
- List - Ordered, Mutable Collections
- Sets - Unordered Collections of Unique Elements
- Tuples - Immutable Sequences
- NumPy arrays - Numerical Computing
- Pandas - Data Analysis
Happy Learning! 🐍✨