fix(interactive_scene): handle OverflowError in on_key_press for large key symbols

[mathsvisualization]

Motivation

Currently, pressing certain system keys (like Win, PrtScr, or special key combinations) inside the interactive window causes an OverflowError: Python int too large to convert to C int. This fix prevents crashes by safely handling such cases, improving stability when working with InteractiveScene.

Proposed changes

• Updated InteractiveScene.on_key_press:
  • Wrapped chr(symbol) in a try/except.
  • Catch OverflowError to avoid crashing when key symbols are too
    large.
• Prevents the application from breaking during user interaction with
  special keys.

Test

Code:

from manimlib import *

class HelloWorldExample(InteractiveScene):
    def construct(self):
        pass

Result:

• Run the above scene.
• Press system keys like Win + PrtScr.
• Before fix → application crashed with OverflowError.
• After fix → application runs normally without crashing (large key
  symbols are ignored).

Before:

After: