[issue43424] Document the `controller.name` field in `webbrowser` module

[Larry Hastings]

Change by Larry Hastings <larry at hastings.org>:


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components:  -2to3 (2.x to 3.x conversion tool), Build, C API, Cross-Build, Demos and Tools, Distutils, Documentation, Extension Modules, FreeBSD, IDLE, IO, Installation, Interpreter Core, Library (Lib), Parser, Regular Expressions, SSL, Subinterpreters, Tests, Tkinter, Unicode, Windows, XML, asyncio, ctypes, email, macOS

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43424>
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