### Basic Mypy Example

Source: https://mypy.readthedocs.io/en/stable

This snippet demonstrates a common error that mypy can detect. It shows how adding type hints can help identify type mismatches before runtime.

```Python
number = input("What is your favourite number?")
print("It is", number + 1)  # error: Unsupported operand types for + ("str" and "int")

```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.