The new MaskedInput widget allows developers to control user input based on a specified mask string, enhancing input validation in applications.
To use the MaskedInput widget, ensure you have Textual version 0.80.0 or higher, and consider upgrading via 'python -m pip install textual --upgrade'.
In order to create a masked input for a credit card number, the template '9999-9999-9999-9999;0' ensures numeric input with automatic formatting.
The MaskedInput widget visually indicates errors with a red outline if the input is invalid, only accepting numerical input and ignoring alphabetic keys.
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