The optparse.OptionGroup class in Python is a utility class that allows the grouping of related command-line options together. It provides a way to organize and categorize options under a common heading or topic, making the command-line interface more organized and user-friendly. OptionGroup allows developers to create logical groupings of options and display them in a well-structured manner when generating help messages or usage information. This helps users understand the purpose and usage of different options more easily. Additionally, OptionGroup provides a convenient way to handle mutually exclusive options within a group, ensuring that only one option from a particular group can be provided by the user.
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