{"id":14434,"library":"args","title":"args","description":"The 'args' library (version 0.1.0) by Kenneth Reitz is a minimalistic command-line argument parser designed to simplify access to arguments, flags, and assignments. Released in 2012, it provides a very basic interface for parsing command-line inputs. The library is considered abandoned, with its GitHub repository marked as an archive, and is no longer actively maintained. [2, 5]","status":"abandoned","version":"0.1.0","language":"en","source_language":"en","source_url":"https://github.com/kennethreitz-archive/args","tags":["cli","arguments","parsing","python2","abandoned","kenneth reitz"],"install":[{"cmd":"pip install args","lang":"bash","label":"Install latest 0.1.0 version"}],"dependencies":[],"imports":[{"note":"The library primarily exposes functionality through the top-level 'args' module, not individual classes or functions.","wrong":"from args import ...","symbol":"args","correct":"import args"}],"quickstart":{"code":"import args\nimport sys\n\n# Example usage for a script run as: python your_script.py arg1 --flag file.txt key=value\n# Simulate command-line arguments for demonstration if run without actual CLI args\nif len(sys.argv) == 1:\n    # Only if the script is run without arguments, use a simulated set\n    sys.argv.extend(['arg1', '--flag', 'file.txt', 'key=value'])\n\nprint(f'Arguments passed in: {args.all}')\nprint(f'Flags detected: {args.flags}')\nprint(f'Files detected: {args.files}')\nprint(f'NOT files detected: {args.not_files}')\nprint(f'Grouped Arguments: {args.grouped}')\nprint(f'Assignments detected: {args.assignments}')","lang":"python","description":"This quickstart demonstrates how to import and use the 'args' library to access various categories of command-line inputs such as all arguments, flags (prefixed with '--'), file-like arguments, and key-value assignments."},"warnings":[{"fix":"This library is not compatible with Python 3. For modern Python, use the standard library `argparse` or a well-maintained third-party alternative. If absolutely necessary, adapt to Python 2 or manually port relevant code sections.","message":"The `args` library (v0.1.0) uses Python 2 `print` statements in its examples and internal logic. Running it directly on Python 3 will result in `SyntaxError` or other compatibility issues due to the `print` function change. The project is effectively Python 2 only.","severity":"breaking","affected_versions":"All versions (0.1.0) when used with Python 3.x"},{"fix":"Migrate to `argparse` (Python standard library) for robust command-line parsing, or consider other actively maintained libraries like `click` or `docopt` for more advanced CLI applications. [3, 11]","message":"The `args` library is an archived project by Kenneth Reitz and has not been updated since 2012 (PyPI release) / 2018 (last GitHub activity). It is considered unmaintained and should not be used for new projects. [2, 5]","severity":"deprecated","affected_versions":"0.1.0"},{"fix":"Do not expect `args` to provide the rich functionality of `argparse`. Understand its limited parsing capabilities. For anything beyond basic argument inspection, `argparse` is the recommended standard. [9, 11]","message":"The `args` library offers a very simplistic parsing model, unlike `argparse`. It does not support explicit argument definitions, types, default values, or subcommands. It categorizes arguments based on simple patterns (e.g., `--` for flags, `=` for assignments, `.txt` for files by default). [2]","severity":"gotcha","affected_versions":"0.1.0"}],"env_vars":null,"last_verified":"2026-04-16T00:00:00.000Z","next_check":"2026-07-15T00:00:00.000Z","problems":[{"fix":"This library is fundamentally Python 2. Using it in Python 3 requires either a Python 2 environment or a significant rewrite of the library to update `print` statements and other potential incompatibilities. It is generally recommended to use modern alternatives.","cause":"The library's examples and likely some internal logic are written using Python 2's `print` statement syntax, which is incompatible with Python 3's `print()` function.","error":"SyntaxError: Missing parentheses in call to 'print'"},{"fix":"Access arguments via the provided collections (`args.all`, `args.flags`, `args.assignments`). For structured argument parsing with named arguments, use Python's built-in `argparse` module, which allows defining specific arguments and accessing them by name. [9, 11]","cause":"The 'args' library does not parse named arguments (e.g., `--foo bar`) into directly accessible attributes like `args.foo`. It only provides broad categories like `args.all`, `args.flags`, `args.grouped`, and `args.assignments`. [2]","error":"AttributeError: 'module' object has no attribute 'some_named_argument'"}],"ecosystem":"pypi"}