Voice recognition
This article describes how to perform voice recognition in Python using the 3rd party pywin32 library along with the Microsoft Speech SDK.
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pywin32
The pywin32 package provides access to various Windows APIs within Python. These APIs can be used to create UI objects (windows, dialogs, etc..), interface to native or 3rd party libraries using COM, access low-level OS functionality, and much more.
pySerial
The pySerial module is a Python add-on that provides access to the serial port.