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Table of Contents

  • optparse — Parser for command line options
    • Choosing an argument parsing library
    • Introduction
    • Background
      • Terminology
      • What are options for?
      • What are positional arguments for?
    • Tutorial
      • Understanding option actions
      • The store action
      • Handling boolean (flag) options
      • Other actions
      • Default values
      • Generating help
        • Grouping Options
      • Printing a version string
      • How optparse handles errors
      • Putting it all together
    • Reference Guide
      • Creating the parser
      • Populating the parser
      • Defining options
      • Option attributes
      • Standard option actions
      • Standard option types
      • Parsing arguments
      • Querying and manipulating your option parser
      • Conflicts between options
      • Cleanup
      • Other methods
    • Option Callbacks
      • Defining a callback option
      • How callbacks are called
      • Raising errors in a callback
      • Callback example 1: trivial callback
      • Callback example 2: check option order
      • Callback example 3: check option order (generalized)
      • Callback example 4: check arbitrary condition
      • Callback example 5: fixed arguments
      • Callback example 6: variable arguments
    • Extending optparse
      • Adding new types
      • Adding new actions
    • Exceptions

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Migrating optparse code to argparse

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getpass — Portable password input