<tr><td><code>d[k] = v</code></td><td>Insert or replace</td><td>No error</td><td>None</td></tr> <tr><td><code>d.get(k)</code></td><td>Safe lookup</td><td><code>None ...
If you’re new to Python, one of the first things you’ll encounter is variables and data types. Understanding how Python handles data is essential for writing clean, efficient, and bug-free programs.