Python Docopt Vs Argparse

you have to convert the args to the re. python montyhallsim. Python Listing a directory using Python; How to insert a dictionary in another dictionary in Python (How to merge two dictionaries) range vs. I am looking for a command line argument parsers that are named, typed and come with help message. Python parsing like a pro. This means that a large portion of Python code is written as scripts and command-line interfaces. Command-line arguments in Python We can start a program with additional arguments, in the command line. Here is an example:. And keep practicing. txt and import each test file with __import__ (that actual. $ python test. Supposed to be flexible and powerful, and attempts to be compatible with the functionality of the Python standard argparse library (though not necessarily the API). Over 2 years after Python 3's release 9% of the 200 most popular packages were marked compatible. Learn to build a CLI using argparse (a module in the Python Standard Library), and other alternative, third-party packages. API from docopt import docopt docopt (doc, argv = None, help = True, version = None, options_first = False). In this course, you will learn how to build a command-line interface (CLI) with argparse (a module in the Python standard library) and with third-party packages that offer alternative approaches and extended functionality. 7 and the Argparse module to parse command line parameters. 12 months ago. Command Line Parsing in the Standard Library As background, let's consider the options for command line option parsing in the standard library. With a name inspired by the British comedy group Monty Python, it was an important foundational goal of the Python development team to make the language fun to use. 1) Released 6 years ago Argdeclare is a declarative argument configurator for python's argparse. The argparse module also automatically generates help and usage messages and issues errors when users give the program invalid arguments. This module targets especially unsophisticated users, programmers, sys-admins, scientists and in general people writing throw-away. Some of these include click, docopt, and SO many others. An interface description in docopt is such a help message, but. View the Project on GitHub grisha/mod_python [Docs 3. argparser 3. I get a lot of questions through email, and in person. Building Nice Command Line Interfaces A Look Beyond The Standard Library Europython 2015 - Bilbao 07 July, 2015. description. Sure you could write your own parser to get command line arguments from sys. In this chapter, you will learn how to build command-line interfaces (CLIs) for Python programs and to automate common tasks related to version control, virtual environments, and Python packaging. go A command-line arguments parser that will make you smile. I completely agree that it should be done in Python either way. Make pull requests, report bugs, suggest ideas and discuss docopt. 0 was first released in 2000. GitHub Gist: instantly share code, notes, and snippets. You can do it! Command line arguments may take some practice or getting used to if you are new to working in a terminal — but I have faith in you! Don’t get discouraged. 2012-12 the site was renamed to "Python 3 Wall of Superpowers" after surpassing 50% compatibility. I couldn't find a good intro guide for argparse when I needed one, so I wrote this article. Welcome to the intermediate Python programming tutorial series. It can help debug Python code more easily from the command line, create CLI interfaces to existing code, allow you to interactively explore code in a REPL, and simplify transitioning between Python and Bash (or any other shell). It's quick. Let us discuss some basics first. Just a few weeks ago I commented on how easy it is to create a good commandline interface with the argparse library. Argparse 사용하기. Testing Python command line apps. parse_args() Run the code Run the code with the --help option (Running the script without any options results in nothing displayed to stdout) python program. Python uses indentation to create readable, even beautiful code. argparse is the "recommended command-line parsing module in the Python standard library. when I run th. with argparse). Then focus on what's actually important - using the arguments in the rest of your program. 0, backported to Python 2. 0 %description R2spec is a small python tool that generates spec file for R libraries. 2, and is known to work with other versions as well. \$\begingroup\$ Just to be clear, I didn't mean that your question is offtopic there because you did post code to be reviewed and it's acceptable scopes of stack exchanges overlap a bit but if you did want a theoritical, elaborate point of view about structuring your classes API, with pro/cons of alternatives based on your requirements, then SE was more likely to give that. Python list method pop() removes and returns last object or obj from the list. python命令行参数解析模块argparse和docopt的更多相关文章. The biggest difference is that optparse is deprecated since Python 3. " It's what you use to get command line arguments into your program. Your go-to Python Toolbox. py あああ 該当のソースコード. Ex04 on Learn More Python the Hard Way requires to work with the Argparse module. In addition to these library-oriented use cases, Fabric makes it easy to integrate with Invoke’s command-line task functionality, invoking via a fab binary stub: Python functions, methods or entire objects can be used as CLI-addressable tasks, e. argparse 옵션 알아보. ?¶ Docopt and many tools like it are cool in how they work but very few of these tools deal with nesting of commands. Most common / useful python modules. The Python Discord. Getopt::ArgParse - Parsing command line arguments with a richer and more user-friendly API interface, similar to python's argpare but with perlish extras. Since one of the reason’s for exploring docopt is to find a way to simplify the argument parsing in the Ape, I’ll see if I can reproduce it here. It has a very important style guideline called PEP8. But I’m going to use docopt. What is a Command Line Interface(CLI)? A command-line interface or command language interpreter (CLI), also known as command. doc to argparse driven by docopt. Python: Command Line Interfaces (CLI) mit Docopt, argparse. Python is an extremely readable and versatile programming language. just generating correct troff from the source. Let’s try this gender and age classifier out on some of our own images now. Plac is a simple wrapper over the Python standard library argparse, which hides most of its complexity by using a declarative interface: the argument parser is inferred rather than written down by imperatively. Supposed to be flexible and powerful, and attempts to be compatible with the functionality of the Python standard argparse library (though not necessarily the API). Its newest version, 3. 0 %description R2spec is a small python tool that generates spec file for R libraries. Python provides the following two options: The getopt module is a parser for command line options whose API is designed to be familiar to users of the C getopt() function. If you pass -h to your command line, it is trying to open file with that name. Why not use one of those? It turns out there's at least one area where Click and docopt just won't do—modular CLI. Vincent Driessen has a good post on getting started fast with click and Cookiecutter. He moved from the Netherlands to the USA in 1995, where he met his wife. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. name or flags. argv is usually what you want; by using sys. The line chart is based on worldwide web search for the past 12 months. Have you ever wondered how to process command line arguments in Python? Yeah, there's a module for that. py ask model. Python is an interpreted, dynamically typed language. Isn't it awesome how optparse and argparse generate help messages based on your code?! Python (package python-docopt did not provide a python2-docopt package in. OptionParser. : argparse or click. python and other forums, Python 2. argv can be looped for all remaining arguments. James: That's not related to this issue. After being frustrated with both OptParse and ArgParse, I have settled on DocOpt. Docopt is a python package which helps you define the interface for your command-line app and automatically generate a parser for it. Here is an example:. This article is the second part of a series on using Python for developing asynchronous web applications. Python is a great tool for making command line programs. The argparse module also automatically generates help and usage messages and issues errors when users give the program invalid arguments. How does it do that? The program defines what arguments it requires, and argparse will figure out how to parse those out of sys. pairs Python argparse dict arg As for the current libraries like argparse, docopt and click, none of them support using dict args. An interface description in docopt is such a help message, but. But I will say that what’s very appealing about docopt is that it turns optparse and argparse on their heads. While executing python script, we can provide additional arguments in command line. Tons of web site and applications allow the use of Emoji. Tshepang Lekhonkhobe. Python programs can start with command-line arguments. Recent in Python. Click is a Python package for creating beautiful command line interfaces in a composable way with as little code as necessary. py作为命令行程序的入口。. The official Python documentation for getopt and optparse both suggest to use argparse instead. argv your usage information matches your user's command-line invocation of your utility. Python内置的argparse已经足够用了,不过docopt值得尝试。 依赖管理. py -vv 3 $ python optparse_count. It makes two assumptions:. I was exposed to it through this video. pickle "This movie is awesome" How to create it? There are several possibilities e. The argsparse module can be used to parse command line arguments. The following are code examples for showing how to use docopt. Python Apps the Right Way: entry points and scripts. He has also given several talks at various conferences in Europe. 5; Resource; SymPy; Python Testing; Python Tips; yield with list comprehension; 量子電腦; Engineering Report - Week 28, 2015. An argparse wrapper that doesn't make you. To begin, recall that we have some major principles. The ‘argparse’ module in Python is the easy to make user-friendly, powerful command-line interfaces. #!/usr/bin/env python # -*- coding: utf-8 -*- import argparse import shutil import os from os. 当写一个Python脚本时经常会遇到不同参数不同功能的情况,如何做一个更好看的命令帮助信息以及对命令参数解析呢? 这就需要使用argparse模块 #!/usr/bin/env python # -*. [Lost In Transit] Python, REST APIs and network automation. argv and the Jupyter notebook starts the Python kernel by executing the kernel's __main__. 0 was first released in 2000. How-to display a summary of non-printable characters in a text file. The program defines what arguments it requires, and argparse will figure out how to parse those out of sys. Tons of web site and applications allow the use of Emoji. Intermediate Python Tutorials. Supposed to be flexible and powerful, and attempts to be compatible with the functionality of the Python standard argparse library (though not necessarily the API). This article discusses how you can create a CLI for your python programs using an example in which we make a basic “text file manager”. By default, argparse will look for a single argument, shown above in the filename example. argparse通过在程序中定义好我们需要的参数,其将会从 sys. For example, this is the struct I'd define in Rust:. Python is a great language for writing command-line tools - which is why so much of Linux is secretly written in Python these days. Why not Docopt etc. you have to convert the args to the re. A grammar for Pyleri must be defined in Python expressions that are part of a class. Why? Personally I like declaring command and parameters using decorators/annotations. Greetings, Earthling! Welcome to The Hitchhiker’s Guide to Python. doc to argparse driven by docopt. In this Python Function Arguments tutorial, we will learn about what function arguments used in Python and its type: Python Keyword Arguments, Default Arguments in Python, and Python Arbitrary Arguments. optparse" by @Nicholas, saying we can have argparse available in python <2. The Python Discord. Some of these include click, docopt, and SO many others. extend list methods in Python ; Does Python have a ternary conditional operator? Accessing the index in 'for' loops? Difference between__str__ and__repr__? Does Python have a string 'contains' substring method? Argparse optional positional arguments?. conf` under section [[udp]] enabled = true bind-address = ":8089" # port number for sending data via UDP database = "udp1" # name of database to be stored [[udp]] enabled = true bind-address = ":8090" database = "udp2" """ import argparse from influxdb import. In particular, the modules provides the following features:. argparse 옵션 알아보. split command line parsing from processing Your preprocess function shall not care about command line parameters, it shall. Repeating groups of arguments with argparse. 27 Oct 2009 » Python Regular Expressions Evaluator; 03 Oct 2009 » Python and the Blogroll; 30 Sep 2009 » php to eat, python to grow! 29 Sep 2009 » Language Performance Analysis; 28 Sep 2009 » Standard library granularity in python, argparse vs getopt; 19 Sep 2009 » My First Python Contribution; 19 Sep 2009 » Thoughts On Ecosystems And If. Argparse vs docopt. Pythonスクリプトでコマンドライン引数argvを処理するモジュール。 argparseがいいのかと思っていたがdocoptちゅうのがあるらしい。 こっちの方が見場がいいなー。 本家ページ。 docopt—language for description of command-line interfaces 使い方。. py filename. Python에서 “argparse”를 사용하면 쉽게 Argument를 추가할 수 있다. Finally, make sure you’re running Python version 3. Docopt is a lightweight python package for creating command line interface easily by parsing POSIC-style or Markdown usage instructions. In this step-by-step tutorial, you'll learn about MATLAB vs Python, why you should switch from MATLAB to Python, the packages you'll need to make a smooth transition, and the bumps you'll most likely encounter along the way. Python模块之命令行解析工具-argparse; python argparse模块解析命令行选项简单使用; Python命令行解析库argparse; Python命令行解析库argparse; Python命令行解析库argparse; 转:python命令行解析工具Argparse; 详解Python命令行解析工具Argparse; python 解析命令参数(argument)组件argparse. Unlike the other modules, this works instantly. I am aware of argparse and getopt which are great but has python dependencies. You can find more details on both of them in the Python documentation but to give you an idea what an argparse script looks like, here’s an example: import argparse parser = argparse. Vincent Driessen has a good post on getting started fast with click and Cookiecutter. Contribute, make pull requrests, report bugs, suggest ideas and discuss docopt. This tutorial is intended to be a gentle introduction to argparse, the recommended command-line parsing module in the Python standard library. For example, even the standard Python argparse will automatically dispatch to Python methods. News about the dynamic, interpreted, interactive, object-oriented, extensible programming language Python. >>> Python Software Foundation. So here's my problem: I need a GUI to get a live webcam stream from openCV (or just open a video file), pass it to the Tkinter GUI window, and add some buttons and stuff to it. 7 and Python 3 share many similar capabilities, they should not be thought of as entirely interchangeable. Let’s start with something simple! I have always found. Become a Member Donate to the PSF. This is because the argparse Python library replaces dashes with underscores during the parsing. This category is for intermediate Python developers who already know the basics of Python development and want to expand their knowledge. Default Argument in Python. The argparse. Another side issue, python-argparse rpm vs nfs-utils. Still need all the features of argparse?. No longer necessary to write much code only: import docopt args = docopt. This allows docopt to always use the latest sys. This a simple example that demonstrates how to deal with parsing arguments in a Python application and how to quickly and efficiently document their syntax. The following are code examples for showing how to use docopt. But one thing that I've noticed that was a problem that you can't easily have a variable with. He moved from the Netherlands to the USA in 1995, where he met his wife. 原文:Argparse Tutorial 译者:likebeta 本教程是对于Python标准库中推荐使用的命令行解析模块argparse的简单介绍。. go VS The Platinum Searcher A code search tool similar to ack and the_silver_searcher(ag). Für Python gibt es hier einen ausführlicheren Beitrag von mir auf StackAbuse. Pythonでargparseを使ってコマンドライン引数の解析を行いたいのですが、 マルチバイト文字を使った際に文字化けが発生します。 OSはWindows10、Pythonは3. Following is the syntax for pop() method. Python Developer’s Guide¶. argv and the Jupyter notebook starts the Python kernel by executing the kernel's __main__. While this combination of technologies is powerful, it can be challenging to convince others to use a python script - especially when many may be intimidated by using the command line. Best practice? Why didn't you say so? ;) Although, I'm not sure you'll get consensus. As most other things in Python, the with statement is actually very simple, once you understand the problem it’s trying to solve. Let’s try this gender and age classifier out on some of our own images now. rpm for CentOS 7 from PUIAS Unsupported repository. xrange in Python; List Comprehension vs Generator Expressions in Python; Plain function or Callback - An example in Python; Callback or Iterator in Python; Function vs Generator in Python. perl (for example) All this editorializing aside, Python favors ease of development and maintenance over strict protections and enforcements. Unfortunately, what starts as a simple script can quickly get out of hand as more features are added and more people start using it!. Python: Command Line Interfaces (CLI) mit Docopt, argparse. We can use pip to install this package. Although alternatives exist like docopt, I’ve always found argparse pretty easy to use. : argparse or click. Aside: who asked for fizz and buzz to be parameterized? Parameterizing fizz and buzz adds testing and maintenance burden. Some ideas I ran across in my search: Use a 3rd party CLI-testing solution like ScriptTest or a framework that includes testing like pyCLI. python命令行参数解析模块argparse和docopt的更多相关文章. Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. Python is a great language for writing command-line tools - which is why so much of Linux is secretly written in Python these days. There are numerous tools in python to help you create a command line interface. What are metaclasses in Python? Is there a way to run Python on Android? What is the difference between @staticmethod and @classmethod? What is the best way to iterate over a dictionary? What does the “yield” keyword do? Does Python have a ternary conditional operator? Add new keys to a dictionary?. Wikipedia explains that some of the Emoji were standardized as Unicode characters. $ python niceports. Python is an extremely readable and versatile programming language. View the Project on GitHub grisha/mod_python [Docs 3. Isn't it awesome how optparse and argparse generate help messages. The first part provides a more in-depth coverage of concurrency in Python and asyncio, as well as aiohttp. Python很优雅。使用以下模块有助于保持你的代码整洁、易于维护。欢迎补充。 Docopt。忘了optparse和argparse吧,使用docstring来构建优雅的、高可读性、复杂(如果你有这个需要)的命令行界面. An interface description in docopt is such a help message, but. I wanted to learn how to use python to replace bash, and found this old post from 2008 or 2009. Posted on September 8, 2015 July 12, 2017 Author Yasoob Categories python Tags argparse, click, docopt, memory leaks, php, php vs python, python, rest api, sql alchemy 1 Comment on Nice tutorials I bumped into recently. doc could be a module docstring (__doc__) or some other string that contains a help message that will be parsed to create the option parser. add_argument_group() Example When you create an argparse ArgumentParser() and run your program with '-h' you get an automated usage message explaining what arguments you can run your software with. The Python community refers to him as the BDFL (Benevolent Dictator For Life), a title straight from a Monty Python skit. It's highly configurable but comes with sensible defaults out of the box. Easy to set up, and written in a relatively straightforward style. With a name inspired by the British comedy group Monty Python, it was an important foundational goal of the Python development team to make the language fun to use. Greetings, Earthling! Welcome to The Hitchhiker’s Guide to Python. help2man is very limited in its flexibility (it doesn't help that it's written in Perl), and there are fundamental limits to what you can do from parsing the --help output, vs. This PEP proposes inclusion of the argparse module in the Python standard library in Python 2. In today’s post, we’ll build out a method to track and distort our face in real time, just like these apps do. Command Line Interface¶. Python Developer’s Guide¶. 셀이나 여러 언어에서 이런 부분들을 별도의 모듈로 제공합니다. Shell scripting is an essential part of any Python workflow. Apache/Python Integration. It can help debug Python code more easily from the command line, create CLI interfaces to existing code, allow you to interactively explore code in a REPL, and simplify transitioning between Python and Bash (or any other shell). Let’s start with something simple! I have always found. Depending upon the arguments defined in the program, 'argparse' has ability to parse the arguments passed to the script from the 'sys. API from docopt import docopt docopt (doc, argv = None, help = True, version = None, options_first = False). Python SDK; The Direct Runner executes pipelines on your machine and is designed to validate that pipelines adhere to the Apache Beam model as closely as possible. Data Mining using Python | code comments Comments and a function declaration? # Get comments of a subreddit, returns a list of strings def get_subreddit_comments(self, subreddit, limit=None):. Python Fire automatically generates a command line interface, you only need one line of code. Mailing List Archive. With docopt we define the inteface by writtig… help message. xrange in Python; List Comprehension vs Generator Expressions in Python; Plain function or Callback - An example in Python; Callback or Iterator in Python; Function vs Generator in Python. Aug 4, 2013 at 2:10 am: Hi, Is it possible with argparse to have this syntax for. Optparse vs. In today’s post, we’ll build out a method to track and distort our face in real time, just like these apps do. A really quite cute Python debugger, easy to use and GUI driver, is Winpdb:. docopt takes 1 required and 4 optional arguments:. As most other things in Python, the with statement is actually very simple, once you understand the problem it’s trying to solve. The important package to note is argparse. I have the following usage cases that I am trying to accommodate, but I can't figure out how to do this properly with subparsers. To begin, recall that we have some major principles. Here's a recent example with the Python argparse module. add_argument('-w') 但我只是得到一个错误消息说 Usage [-w W] error: argument -w: expected one argument 我认为这意味着它想要-w选项的参数值。. 셀이나 여러 언어에서 이런 부분들을 별도의 모듈로 제공합니다. Python関連記事のリンク集(自分の備忘録用) View on GitHub Python関連記事のリンク集. Given that Explicit is better than implicit. Installing the manpage is a separate concern. Although alternatives exist like docopt, I’ve always found argparse pretty easy to use. Python Advanced Tutorial 3 - Argparse. argparse allows verification of fixed and optional arguments with a name checking as either UNIX or GNU style. py [-h] optional arguments: -h, --help show this help message and exit. It allows you to define command line option specifications for your python command line tool in a simple and much more intuitive way, which is its main difference to other alternatives like argparse, optparse or docopt. Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. Here's a recent example with the Python argparse module. Make pull requests, report bugs, suggest ideas and discuss docopt. Docopt Es (en mi opinión) uno de los mejores frameworks para crear herramientas de líneas de comandos que existe y tiene además la ventaja de no ser exclusiva de Python, para utilizarla solo tienes que documentar el módulo o función que va a obtener los argumentos de la línea de comandos. txt looks like this: test1 d:\123\test2 My program reads the command line with argparse module, reads each line of the test_scripts_list. I wanted to learn how to use python to replace bash, and found this old post from 2008 or 2009. net Port of docopt to. Introduction. The argparse module was added to Python 2. You can also drop a line directly to vladimir @ keleshev. Argparse Python Argparse Cookbook. I was wondering how accepted it is to transform code like this: import argparse def func(a, b): r. ; As this function is similar to C function and Unix getopt() function, users familiar with those conventions will find it very easy to use Python getopt module functions. Python has a number of command-line interface builder tools. For the second thing there should be some strategy to choose how (and which) options are merged into configuration to make the process of program configuration easy for the user and occasional patch contributors. split, some of the regex's had to be restructured and additional loops used. Last update on June 11, 2017 under IT, This is a tutorial covering what, how and why to use argparse with python. Interest over time of NFlags and Docopt Note: It is possible that some search terms could be used in multiple areas and that could skew some graphs. Just a few weeks ago I commented on how easy it is to create a good commandline interface with the argparse library. May seem crazy ;) Add following to the beginning of mlp. Since one of the reason’s for exploring docopt is to find a way to simplify the argument parsing in the Ape, I’ll see if I can reproduce it here. 一、argparse argparse 是 Python 内置的一个用于命令项选项与参数解析的模块,通过在程序中定义好我们需要的参数,argparse 将会从 sys. You can vote up the examples you like or vote down the ones you don't like. Next, we’ll import some default packages in Python. 7后已不推荐使用。 argparse:基于optparse的新库。 docopt:根据文档描述,自动生成。 Python Tools for Visual Studio. The rendering on screen is down with curses, which is quite a thin wrapper around the curses C library. Elegant command line parsing in Python using docopt, schema, and yaml Both for my work and personal use, I tend to develop many command-line Python scripts that are very data-driven and configurable. 使用argparse 配置命令行参数时,需要三步:. REAL PYTHON Python vs R — Choosing the Best Programming Language for Data Science “Functional Programming vs. Python is a great tool for making command line programs. We think docopt is so good, we want to share it beyond the Python community! All official docopt ports to other languages can be found under the docopt organization page on GitHub. py あああ 該当のソースコード. Ошибки python argparse с «%» в строке справки. Python Language Advanced example with docopt and docopt_dispatch Example As with docopt, with [docopt_dispatch] you craft your --help in the __doc__ variable of your entry-point module. ?¶ Docopt and many tools like it are cool in how they work but very few of these tools deal with nesting of commands. 指定版本安装:pip install docopt==0. 第一步要做的就是命令行程序的定义接口描述或者是帮助信息,这样 docopt 就能知道命令行的元信息,从而自动解析。 接口描述通常定义在一个模块的文档字符串中,我们仍然以在 Python 命令行之旅:初探 argparse 的例子为例,讲解如何使用 docopt 来定义接口描述。. Instead of writing code that generates a usage message, you write a usage message that docopt turns into code. 7 as a replacement for optparse. Skip navigation Sign in. But if your code is changing, that's when you'll start to see larger time savings. Für Python gibt es hier einen ausführlicheren Beitrag von mir auf StackAbuse. Learn more. name or flags. Python으로 작성한 코드를 실행할 때 특정 Argument를 추가해야만 실행이 가능하도록 코드를 작성하고 싶은 경우가 발생한다. 7, was released in 2010. py あああ 該当のソースコード. You can also save this page to your account. Installing the manpage is a separate concern. The argparse module makes it easy to write user-friendly command-line interfaces. This article discusses how you can create a CLI for your python programs using an example in which we make a basic "text file manager". I'm using Python 2. [Tony Bourke YouTube] Python for network engineers. python解析命令行. This tutorial is intended to be a gentle introduction to argparse, the recommended command-line parsing module in the Python standard library. perl (for example) All this editorializing aside, Python favors ease of development and maintenance over strict protections and enforcements. 一、argparse argparse 是 Python 内置的一个用于命令项选项与参数解析的模块,通过在程序中定义好我们需要的参数,argparse 将会从 sys. Click is a Python package for creating beautiful command line interfaces in a composable way with as little code as necessary. just generating correct troff from the source. Home > Python I have some code where sys. Docopt, beautiful command-line options for R Edwin de Jonge (@edwindjonge), Statistics Netherlands (CBS) July 2014, UseR!2014 Edwin de Jonge (@edwindjonge), Statistics Netherlands (CBS) Docopt, beautiful command-line options for R. This tutorial is intended to be a gentle introduction to argparse, the recommended command-line parsing module in the Python standard library. As soon as a command line program gets a bit beyond the basics, you need to provide an interface that allows users to set options, etc. IronPython URLs is an aggregator for articles, news and links on IronPython and the Dynamic Language Runtime. add_argument('-w') 但我只是得到一个错误消息说 Usage [-w W] error: argument -w: expected one argument 我认为这意味着它想要-w选项的参数值。. Classes, as objects, have a class, which is known as their metaclass. I'm not upgrading F13-F16. Vincent Driessen has a good post on getting started fast with click and Cookiecutter. This PEP proposes inclusion of the argparse module in the Python standard library in Python 2. The SysAdmin's Guide to Python. Python Language Advanced example with docopt and docopt_dispatch Example As with docopt, with [docopt_dispatch] you craft your --help in the __doc__ variable of your entry-point module. Alternatively you can just drop docopt.