Python Readline Tab Completion

or socat (has history, readline support): socat readline tcp:127. Python does not support a character type; these are treated as strings of length one, thus also considered a substring. However, with a little bit of work we can go one step further and add in a tab line completion to our program. Creating strings is as simple as assigning a value to a variable. 安装readline cmd命令行,就会. Readline is best known for its use in the well-known Unix shell Bash, the standard shell for Mac OS X and many Linux distributions. set_completer(completer. 今天开始学习Python,必须配置tab键补全功能 1. so is the shared version of the GNU readline library, while the readline. I want to use the readline library and Python to send input to SML and print its output to the screen. Y library is then installed in /usr/local/lib/python X. Their default values enable completion for both CPython and IPython, and probably any readline based shell (it's known to work with PyPy). 0, IPython stopped supporting compatibility with Python versions lower than 3. 3 (and later). 3 including all versions of Python 2. py installer if you want/need to build your own. parse_and_bind('tab: complete') >>> read Should expand to "readline" with no trailing space. If you using Python 3. Next, I execute - import rlcompleter, readline readline. pyreadline は iPython で使用されていて readline に置き換わる Python ベースのライブラリとして開発されている cmd cmd モジュールは、コマンドラインインタフェースでタブ補完を実装するために readline を広範囲で使用します。. 《利用Python进行数据分析·第2版》第2章 Python语法基础,IPython和Jupyter Notebooks seancheney 2017-11-03 11:36:00 浏览408 Mac系统之Python命令行tab键补全. I suspect your Linux Python 3 wasn't compiled with it. While Python ships with readline bindings in its standard library, they only implement a subset of readline’s features, just enough to perform identifier completion at the Python interpreter prompt. The source archive includes a distutils setup. This provides command line history and editing, but does not support the readline API (for application controlled TAB completion, etc). End User Usage¶. What should be done to disable writing this history file but still preserve tab-completion?. shell> cat tab. They are extracted from open source Python projects. I suspect this is a problem with the packaged readline in anaconda. If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to [email protected] clear_history ¶ 清除当前历史记录。 这在底层库中调用 clear_history() 。 如果Python是为支持它的库的版本编译的,Python函数才存在。. I define my completion candidates using complete_. Not having it on # prevents you from getting command history with the arrow keys, searching and # name completion using TAB. Implementing custom completion with readline is fairly simple. Tab-completion. Notes: Exceptions raised by the completer function are ignored (and; generally cause the completion to fail). the xonsh shell¶ ~ ~ Xonsh is a Python-powered, cross-platform, Unix-gazing shell language and command prompt. This means pyreadline install a file under the name readline. >>> readline. py` not found. I'd have preferred to use Ruby, but the complex tab completion in gitsh needed Readline features beyond those provided by the Ruby Readline module. 安装成功后,cmd里运行ipython,成功啦. First, an rcfile can contain permanent default values for almost all command line options (except things like -help or -Version). the current global and local names are offered as arguments of the p command. py #!/usr/bin/env python # python startup file import sys import readline import rlcompleter import atexit import os # tab completion readline. A file or a computer file is a chunk of logically related data or information which can be used by computer programs. insert (pos, child, **kw) Inserts a pane at the specified. __interactivehook__, but this also removes tab-completion. 想为vim启动自动补全需要下载插件,地址如下:. The IPython pull request 2701, for instance, envisioned a feature -- tab completion based on function-specific annotations -- which, because of the current sub-optimal completion API, required a quite a bit of hacking into the core completer logic to execute. This is used to control # printing of very long strings. 0 minimum est requis #!/usr/bin/env python # Add auto-completion and a stored history file of commands to your Python # interactive interpreter. $ python cmd_do_help. 1 What is Bash? Bash is the shell, or command language interpreter, for the GNU operating system. On versions of Canopy <= 1. I'm not sure what you mean by tab-completion, I'm not sure if I noticed that change? Hope this helps, though, and you find this a helpful start. 0+, readline. Starting in libguestfs ≥ 1. Se for usar apenas no Linux, esse try não é realmente necessário, coloquei-o em volta do import readline, pois ele usa a biblioteca GNU readline, que pode ter alguns problemas fora do Linux. So it came sort of a shock that something so useful, so obvious, was unfamiliar to me until around a week and a half ago. # Add auto-completion and a stored history file of commands to your Python # interactive interpreter. This makes sense for a case insensitive completer. register(readline. I have a simple interactive shell component of it, and I am using the CMD module to achieve this, I am able to setup tab completion for specific actions by using the complete_command method, for example:. Python Interactive Playground - 1. environ['HOME'], '. The documentation suggests to delete the sys. Tab completion; ipython / vs \ in readline on MS Windows (and ipython help grepper) No tab completion if sys. The syntax of the Python programming language is the set of rules that defines how a Python program will be written and interpreted (by both the runtime system and by human readers). parse_and_bind('tab: complete') del rlcompleter, readline 3. py` not found. 脚本写好后保存为tab. pystartup # Add auto-completion and a stored history file of commands to your Python # interactive interpreter. 安装成功后,cmd里运行ipython,成功啦. # Add auto-completion and a stored history file of commands to your Python # interactive interpreter. It prints whatever is inputted and should have tab completion which completes according to whatever text is in the COMMANDS list. Autocomplete is # bound to the Esc key by default (you can change it - see readline docs). How can I enable tab completion and command history in the interactive python shell? One option is to install IPython, which is available for Windows as well as Linux, Unix, and Mac OS X. environ 程序园. The completer function computes an iterable of matches. 0 through 2. rlcompleter adds tab-completion for Python symbols to the interactive interpreter. set_completion_display_matches_hook ([function]) ¶ Set or remove the completion display function. Python bioinformatics utilities for high-throughput genomic sequencing python-biplist (1. The purpose of readline is to improve the interactive experience with the python interpreter by improving the line editing facilities. pythonhistory') try: readline. 博客首页 » Python Windows下的readline自动补全. January 20, 2009 at 1:07 pm. The largest and most up-to-date repository of Emacs packages. 2? This is the code used by Emacs' default Python mode to do completion; with it (python -i completion. The IPython pull request 2701, for instance, envisioned a feature -- tab completion based on function-specific annotations -- which, because of the current sub-optimal completion API, required a quite a bit of hacking into the core completer logic to execute. write_history_file, histfile) del. Mac users are advised to install the package readline for their system. Completer Objects. Autocomplete is # bound to the Esc key by default (you can change it - see readline docs). environ 程序园. Requires Python 2. py #!/usr/bin/env python # python startup file import sys import readline import rlcompleter import atexit import os # tab completion readline. It is configurable, both at a system-wide level and a per project (directory) level. Python Interactive Playground - 1. For example − var1 = 'Hello World!' var2 = "Python Programming" Accessing Values in Strings. Create file named ". set_completer(wrapped_completer) Completion appears to work if I have something in the line to start with, e. If the size argument is present and non-negative, it is a maximum byte count including the trailing newline and an incomplete line may be returned. When this module is imported on a Unix platform with the readline module available, an instance of the Completer class is automatically created and its complete() method is set as the readline completer. 0+, readline. The best/recommended solution is to ensure you are using Python with GNU readline. environ['HOME'], '. py` not found. When installing Visual Studio 2017, select the Python development workload and the optional Python native development tools component to obtain all of the necessary build tools. 0+, readline. Python readline, tab completion cycling with the Cmd interface. p" doesn't suggest completion "os. Availability: Unix. The name is an acronym for the ‘Bourne-Again SHell’, a pun on Stephen Bourne, the author of the direct ancestor of the current Unix shell sh, which appeared in the Seventh Edition Bell Labs Research version of Unix. Deactivating is still the same:. 版权声明:本站原创文章,于3年前,由第九系艾文发表,共 377字。 转载请注明:python linux上交互模式tab自动补全代码 | My Life +复制链接. Python betiğinin çıktısı Pig 'e geri gönderilir. When this module is imported on a Unix platform with the readline module available, an instance of the Completer class is automatically created and its complete() method is set as the readline completer. Often, I’ve wanted to test a. Beginning with version 6. The readline library provides pathname completion; You begin typing a pathname, then hit Tab; If there is only one pathname that matches. 新手学习python的时候,如何没有tab键补全功能,我感觉那将是一个噩梦,对于我们这种菜鸟来说,刚接触python,对一切都不了解,还好有前辈们的指导,学习一下,并记录下来,还没有学习这个功能小伙伴. py), pressing "tab" on a plain prompt offers candidates in Python 2. 工信部备案号:浙ICP备09062716号-2 ©2005-2017 温州第七城市信息科技有限公司 Inc. Importing the module causes it to configure a completer function for readline. Python Readline Tab Completion. It’s taken me some time and a lot of web pages which tried to solve the readline support with all kinds of hacks, but finally I’ve been able to get readline support and auto-completion for IPython to work. GNU/Readline makes it trivally easy to allow for editing a command inline and adding a history of past commands. 1:1234 Why can't I access my C++ Qt class from python. set_completion_display_matches_hook ([function]) ¶ Set or remove the completion display function. To get these features, we have to use rlcompleter module. Creating strings is as simple as assigning a value to a variable. First, turn on the EPEL repo on a CentOS/RHEL version 6 (if you are using CentOS/RHEL 7. The output of the Python script is sent back into Pig. GNU Readline is a powerful line editor with support for fancy editing commands, history, and tab completion. 3, but we need a lot more functionality specific to IPython, so this module will continue to live as an IPython-specific utility. rlcompleter adds tab-completion for Python symbols to the interactive interpreter. python 模块补全 4. I've noticed that the Terminal tab has readline and tab completion enabled by default. 4 Python libraries for building great command-line user interfaces command-line apps—it acts as a replacement for readline, enhancement of Tab-completion. Readline provides: command-line completion (tab-key) command-line history (up/down arrow keys) The original Python readline module was only supported on Unix platforms. Python betiğinin çıktısı Pig 'e geri gönderilir. - gist:5245670 history and tab completion to my python shell. pyreadline 2. parse_and_bind('tab: complete') # history file. If you do not already have git installed, you can find git for Windows on the Individual components tab of the installer. ReadLine Example (While Loop) Use the Console. Useful when writing Python completions and hooks, as exceptions occurring there are usually swallowed by the in-between C code. Vim Awesome is a directory of Vim plugins sourced from GitHub, Vim. If function is specified, it will be used as the new completion display function; if omitted or None. Q&A for computer enthusiasts and power users. The loop iterates while the. write_history_file, histfile) del os, histfile. 为readline添加tab键自动补全功能,像shell一样管理历史命令. 6 (r266:84292, Jan. Installation: Binary installers are available for Python 2. (readline does that for bash, but i don't know how to get readline to do anything but python commands in python). 打开cmd,输入pip3 install ipython联网安装 二. get_completer_delims()¶ Get the readline word delimiters for tab-completion. Unfortunately, readline is Unix-specific. completer ¶ Word completion for IPython. Call us to know more about Python course fees and python certification cost. org REST API python-bitcoin (1. Tab completion Tab completion, especially for attributes, is a convenient way to explore the structure of any object you're dealing with. parse_and_bind("tab: complete") del rlcompleter, readline FYI you can get the same information with dir() and vars(), but it isnt as nice as using tab. This feature can be used to implement multiple levels of cli. Requires Python 2. Useful when writing Python completions and hooks, as exceptions occurring there are usually swallowed by the in-between C code. pythonhistory') try: readline. x, see this page to turn on EPEL repo) and type the following yum command to install bash-completion package: # yum install bash-completion OR # yum install bash-completion bash-completion-extras. 2 get_frame_register_bytes %s/lockfile shoptionletters. readline() with something that will provide the user with line editing and history recall. Tab completion is dependent on readline, so you need to make sure that it is installed. pystartup, and set an environment variable to point # to it: "export PYTHONSTARTUP=~/. version or. If there is a ‘. Tab-completion for cmd2 applications is only tested against GNU Readline. pyplay is a command line tool that invokes the interactive Python shell, but starts it up with tab completion turned on, common paths added to sys. get_completer_delims()¶ Get the readline word delimiters for tab-completion. parse_and_bind("C-tab: complete") but it still completes on regular tab. 0+, readline. These are “container” types that contain other objects. The name is an acronym for the ‘Bourne-Again SHell’, a pun on Stephen Bourne, the author of the direct ancestor of the current Unix shell sh, which appeared in the Seventh Edition Bell Labs Research version of Unix. static_completions(strings): Create a completer function usable with readline that completes partial text based on a static list of strings. 本文实例讲述了Python实现Tab自动补全和历史命令管理的方法。分享给大家供大家参考。具体分析如下: Python的startup文件,即环境变量 PYTHONSTARTUP 对应的文件. 4, you just need install readline module and ignore other content. Readline Completion ¶ Completion is the process initiated when the user presses the TAB key. import pdb pdb. 环境:win10 64位 python 2. Usually a file is kept on a permanent storage media, e. Bash uses GNU Readline to handle input buffering/editing Readline supports many shortcut keys Ctrl+a / Home – goes to the beginning of the line Ctrl+e / End – goes to the end of the line. Requires Python 2. The syntax of the Python programming language is the set of rules that defines how a Python program will be written and interpreted (by both the runtime system and by human readers). p" doesn't suggest completion "os. parse_and_bind("tab: complete") except ImportError: pass # Prepare the session for running within the native python interpreter. For interactive use, the tab completion functionality provided by the Python module rlcompleter is extremely useful as you browse the CPLEX Python API. RHEL / CentOS Linux install and activate Bash completion. It enables tab-completion on the python command line and does the PyMOL environment setup (you need to adjust the moddir variable!). msg279652 -. If function is specified, it will be used as the new completion display function; if omitted or None. Pdb class to avoid including readline, so that the command line completion of other programs which include this isn’t damaged. get_completer_delims()¶ Get the readline word delimiters for tab-completion. ---> The rlcompleter module defines a completion function suitable for the readline module by completing valid Python identifiers and keywords, rlcompleter adds tab-completion for Python symbols to the interactive interpreter. parse_and_bind('tab: complete') OK,那么现在我们就可以不用每次进行python之后进行import tab 动作来使tab键补全. Add the following to your PYTHONSTARTUP file to get readline tab completion in a regular python shell import rlcompleter, readline readline. pythonrc that lives in your home directory. I don't want Python to create or write to this file. The rl package aims to provide full implementations of GNU Readline's Custom Completer and History interfaces. Requires Python 2. */ public class Jython extends PlugInInterpreter implements PlugIn, Runnable. environ['HOME'], '. This module is Unix-specific due to its dependence on the readline module. 编写一个Tab键自动补全功能的脚本 2. but I have tried it, and it doesn't seem to actually Grokbase › Groups › Python › python-list › January 2012. get USER_SITE. I am using the cmd. You cannot override some existing bindings for some reason. Both Emacs and vi editing modes are available. import readline. This provides command line history and editing, but does not support the readline API (for application controlled TAB completion, etc). Creating a symlink to /dev/null does not work, Python removes the file and recreates it. 简单python python 添加tab补全. __interactivehook__, but this also removes tab-completion. First, create a file called. source To use completion, type a pattern you would like the shell to match, followed by the Tab key. By default, the completion function is bound to the ESCAPE key. I used iPython when I need tab completion before I stumbled into this. parse_and_bind('tab: complete') OK,那么现在我们就可以不用每次进行python之后进行import tab 动作来使tab键补全. Say, the completion function suggests 'foobar' and 'foobaz' as matching completion strings, readline should produce the characters 'fooba' to prompt and await further interaction by the user. Eli da****@gmail. It can serve as a drop in replacement for the inbuilt Console. This makes sense for a case insensitive completer. Notice the [] surrounding the argument to join()?That means the result is going to be a list. The pyreadline package is a python implementation of GNU readline functionality it is based on the ctypes based UNC readline package by Gary Bishop. Purpose: Provides an interface to the GNU readline library for interacting with the user at a command prompt. When this module is imported on a Unix platform with the readline module available, an instance of the Completer class is automatically created and its complete() method is set as the readline completer. Tab complete all the things! Argcomplete provides easy, extensible command line tab completion of arguments for your Python script. Review variable ‘python-shell-completion-native-enable’ and ‘python-shell-completion-native-disabled-interpreters and find them mutually exclusive. Or in case of a fuzzy completion, it could fix typos. Global completion. However, some Python distributions (particularly on Windows and OS X), don’t come with a working readline module. One of them suffice to perform the job. See GNU readline on macOS for more details. Set the readline word delimiters for tab-completion. The rlcompleter module defines a completion function suitable for the readline module by completing valid Python identifiers and keywords. 5 - a Python package on PyPI - Libraries. Python has several built-in functions associated with the string data type. readline — GNU readline interface¶. If you haven’t this module, you can using pip install pyreadline to install this module. 3, but we need a lot more functionality specific to IPython, so this module will continue to live as an IPython-specific utility. If you are a not an IDE Developer, the odds are that you just want to use Jedi as a browser plugin or in the shell. That is, after a - is encountered a fresh completion will be tried. completion-display-width: Readline Init File Syntax: completion-ignore-case: Readline Init File Syntax: completion-map-case: Readline Init File Syntax: completion-prefix-display-length: Readline Init File Syntax: completion-query-items: Readline Init File Syntax: condition: Conditions: continue: Continuing and Stepping: continue&: Background. "sid" のサブセクション python に含まれるソフトウェアパッケージ 2to3 (3. 0+, readline. If you are running with a standard Python REPL (not IPython, bPython, or the like) you will have to set up the tab completion manually: Create a. To enable word completion, just import this module. The readline module can be used to enhance interactive command line programs to make them easier to use. A simple Python Tab Completer for either system paths OR lists. 编写具体的实现tab补全功能的脚本,名为tab. An object of one of these types is considered false if it is empty and true if it is non-empty. When this module is imported on a Unix platform with the readline module available, an instance of the Completer class is automatically created and its complete() method is set as the readline completer. 新手学习python,经常要使用python命令行查找一些不熟悉的使用方法等等,但是python命令行下没有自带tab补全的功能,着实让我这新手菜了不过这好在是个互联网的时. This module is a fork of the rlcompleter module in the Python standard library. On a gui on this would be a little bit easier but it's a completley diffrent realm when doing it in the console. exec_prefix are set to /usr/local. If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to [email protected] Completer(). These are simply Bash functions that make use of environment variables to provide completion options. If you are a not an IDE Developer, the odds are that you just want to use Jedi as a browser plugin or in the shell. 简单python关键词补全 2. 简单python python 添加tab补全. Python has several built-in functions associated with the string data type. It is annoying that python shell in osx doesn't have autocomplete enabled by default. The readline is UNIX specific module. parse_and_bind("tab:. get_completer_quote_characters() → string¶ Get list of characters that may be used to quote a substring of the line. register(readline. A space is being inserted after tab completion on the terminal app, but not in qtconsole nor notebook. com: readline. 安装成功后,cmd里运行ipython,成功啦. Requires Python 2. Eli da****@gmail. Readline Support for Windows, Unix & Mac. 新手学习python,经常要使用python命令行查找一些不熟悉的使用方法等等,但是python命令行下没有自带tab补全的功能,着实让我这新手菜了不过这好在是个互联网的时. This is helpful when you use your shell to do repetitive tasks, as it preserves the commands you have typed through different shell sessions. 4 中能不能使用TAB键补全文件名,命名有当前目录下面有一 filename. And unless you're somehow bound to use python 2 there is little to no reason for anyone not to do the jump, at least for new projects. RHEL / CentOS Linux install and activate Bash completion. Install readline module. Python-Editline¶ A Python extension which links to libedit. # Enable Tab Completion # OSX's bind should only be applied with legacy readline. parse_and_bind. Some notes on supporting readline (tab) completion in your Python program March 4, 2016 Adding basic readline-style line editing to a Python program that reads input from the user is very simple; as the readline module documentation says , simply importing the module activates this without you having to call anything. Windows: Currently Windows is untested, but the we recommend installing the pyreadline Python module. Autocomplete is # bound to the Esc key by default (you can change it - see readline docs). When this module is imported on a Unix platform with the readline module available, an instance of the Completer class is automatically created and its complete() method is set as the readline completer. set_completion_display_matches_hook ([function]) Set or remove the completion display function. 0+, readline. I don't want Python to create or write to this file. msg108792 -. If you find this information useful, consider picking up a copy of my book, The Python Standard Library By Example. I found out PHP has a function called readline_completion_function for this purpose but every time I hit tab to complete a word, it adds a space at the end. In global completion mode, you don’t have to register each argcomplete-capable executable separately. 3, users may experience problems at the Python / IPython prompt launched from the terminal, such as odd behavior with tab completion or using the arrow keys. This module activates input editing on Unix, using the GNU readline library (or a compatible library). py) which the run command itself interprets unix style ERROR: File `examplestest. Python cmd on linux does not autocomplete special characters or symbols. so and implements the shell-completion functionality completely independent of libreadline. pythonrc file as well. Запуск интерпретатора Python в интерактивном режиме (с использованием или без использования virtualenv): поддержка чтения readline. get_completion_append_character() → string¶ Get the character appended after the current completion. And unless you're somehow bound to use python 2 there is little to no reason for anyone not to do the jump, at least for new projects. # # Store the file in ~/. May be add methods to the Completer class that provides needed additional information (nothing by default), and add Completer's subclass ReadlineCompleter that implements these methods using readline? Found presumable bugs: "import sy" doesn't suggest completion "sys". If it does, then it creates a readline completer that fills in the next line of the file when you hit CentOS5x32 F13Rawhidex64 RHEL6beta1x64 Debian5x64 FreeBSD8x64 VSphere F10x32 PCBSD8x64 Win2003x32 F12x64 RHEL55x64 Windows7x32 F12x64preview RHEL620100329n0x64 Windows7x64 # guestfish --ro -i >> import rlcompleter >>> import readline >>> readline. Useful when writing Python completions and hooks, as exceptions occurring there are usually swallowed by the in-between C code. Requires Python 2. On the other hand, I'm really happy to say farewell to readline. 用 Python 时没有 tab 补全还是挺痛苦的,记录一下添加该功能的方法利人利己. 一、安装readline. Perhaps the quickest check to see whether command line editing is supported is typing Control-P to the first Python prompt you get. The condition may be any expression, and true is any non-zero value. The way Bash's autocomplete works is that the tab key expands only if there is a unique expansion. The readline module defines a number of functions used either directly or from the rlcompleter module to facilitate completion and history file read and write from the Python interpreter. environ['HOME'], '. The name is an acronym for the ‘Bourne-Again SHell’, a pun on Stephen Bourne, the author of the direct ancestor of the current Unix shell sh, which appeared in the Seventh Edition Bell Labs Research version of Unix. 编写一个Tab键自动补全功能的脚本 2. rlwrap which also wraps GNU Readline, but can be used by invoking jython with: rlwrap jython. Tab complete all the things! Argcomplete provides easy, extensible command line tab completion of arguments for your Python script. ’ in the text, then it will try to get all related members of that. Autocomplete is # bound to the Esc key by default (you can change it - see readline docs). Eli da****@gmail. ReadLine Example (While Loop) Use the Console. If it is so good then why is it not part of the standard Python. Readline is best known for its use in the well-known Unix shell Bash, the standard shell for Mac OS X and many Linux distributions. register(readline. Python Interactive Playground - 1. This differs from previous versions and in most cases is unwanted. # python startup file import sys import readline import rlcompleter import atexit import os # tab completion readline. If you install IPython with setuptools, (e. Cmd class in Python to offer a simple readline interface to my program. py import sys import readline import rlcompleter import atexit import os # tab completion. readline: The readline module defines a number of functions to facilitate completion and reading/writing of history files from the Python. 3, but we need a lot more functionality specific to IPython, so this module will continue to live as an IPython-specific utility. The name is an acronym for the ‘Bourne-Again SHell’, a pun on Stephen Bourne, the author of the direct ancestor of the current Unix shell sh, which appeared in the Seventh Edition Bell Labs Research version of Unix. py installer if you want/need to build your own. This still doesn't give you tab completion in a zopectl session though, unless you do the pdb trick. clear_history ¶ 清除当前历史记录。 这在底层库中调用 clear_history() 。 如果Python是为支持它的库的版本编译的,Python函数才存在。. write_history_file, histfile) del 【原创】如何在vim中使用tab进行python代码补全. 查看模块内容: 版本一 [[email protected] ~]# cat tab. When the current word completes to a single suggestion, two spaces are appended to the completed word instead of one. If you install IPython with setuptools, (e. #!/usr/bin/python # python tab file import sys import readline import rlcompleter import atexit import os # tab completion readline. write_history. resource (Unix) An interface to provide resource usage information on the current process. The pyreadline package is a python implementation of GNU readline functionality it is based on the ctypes based UNC readline package by Gary Bishop. import readline. 0+, readline. Readline in the Python REPL on MacOS. stdout is redirected; tab compleation input; newbie Q on sdtin word completion; Inserting a tab with tab completion enabled on win32.