ptpython ======== |Build Status| |PyPI| |License| *A better Python REPL* :: pip install ptpython .. image :: https://github.com/jonathanslenders/ptpython/raw/master/docs/images/example1.png Ptpython is an advanced Python REPL. It should work on all Python versions from 2.6 up to 3.9 and work cross platform (Linux, BSD, OS X and Windows). Note: this version of ptpython requires at least Python 3.6. Install ptpython 2.0.5 for older Python versions. Installation ************ Install it using pip: :: pip install ptpython Start it by typing ``ptpython``. Features ******** - Syntax highlighting. - Multiline editing (the up arrow works). - Autocompletion. - Mouse support. [1] - Support for color schemes. - Support for `bracketed paste `_ [2]. - Both Vi and Emacs key bindings. - Support for double width (Chinese) characters. - ... and many other things. [1] Disabled by default. (Enable in the menu.) [2] If the terminal supports it (most terminals do), this allows pasting without going into paste mode. It will keep the indentation. Command Line Options ******************** The help menu shows basic command-line options. :: $ ptpython --help usage: ptpython [-h] [--vi] [-i] [--light-bg] [--dark-bg] [--config-file CONFIG_FILE] [--history-file HISTORY_FILE] [-V] [args ...] ptpython: Interactive Python shell. positional arguments: args Script and arguments optional arguments: -h, --help show this help message and exit --vi Enable Vi key bindings -i, --interactive Start interactive shell after executing this file. --light-bg Run on a light background (use dark colors for text). --dark-bg Run on a dark background (use light colors for text). --config-file CONFIG_FILE Location of configuration file. --history-file HISTORY_FILE Location of history file. -V, --version show program's version number and exit environment variables: PTPYTHON_CONFIG_HOME: a configuration directory to use PYTHONSTARTUP: file executed on interactive startup (no default) __pt_repr__: A nicer repr with colors ************************************* When classes implement a ``__pt_repr__`` method, this will be used instead of ``__repr__`` for printing. Any `prompt_toolkit "formatted text" `_ can be returned from here. In order to avoid writing a ``__repr__`` as well, the ``ptpython.utils.ptrepr_to_repr`` decorator can be applied. For instance: .. code:: python from ptpython.utils import ptrepr_to_repr from prompt_toolkit.formatted_text import HTML @ptrepr_to_repr class MyClass: def __pt_repr__(self): return HTML('Hello world!') More screenshots **************** The configuration menu: .. image :: https://github.com/jonathanslenders/ptpython/raw/master/docs/images/ptpython-menu.png The history page and its help: .. image :: https://github.com/jonathanslenders/ptpython/raw/master/docs/images/ptpython-history-help.png Autocompletion: .. image :: https://github.com/jonathanslenders/ptpython/raw/master/docs/images/file-completion.png Embedding the REPL ****************** Embedding the REPL in any Python application is easy: .. code:: python from ptpython.repl import embed embed(globals(), locals()) You can make ptpython your default Python REPL by creating a `PYTHONSTARTUP file `_ containing code like this: .. code:: python import sys try: from ptpython.repl import embed except ImportError: print("ptpython is not available: falling back to standard prompt") else: sys.exit(embed(globals(), locals())) Note config file support currently only works when invoking `ptpython` directly. That it, the config file will be ignored when embedding ptpython in an application. Multiline editing ***************** Multi-line editing mode will automatically turn on when you press enter after a colon. To execute the input in multi-line mode, you can either press ``Alt+Enter``, or ``Esc`` followed by ``Enter``. (If you want the first to work in the OS X terminal, you have to check the "Use option as meta key" checkbox in your terminal settings. For iTerm2, you have to check "Left option acts as +Esc" in the options.) .. image :: https://github.com/jonathanslenders/ptpython/raw/master/docs/images/multiline.png Syntax validation ***************** Before execution, ``ptpython`` will see whether the input is syntactically correct Python code. If not, it will show a warning, and move the cursor to the error. .. image :: https://github.com/jonathanslenders/ptpython/raw/master/docs/images/validation.png Additional features ******************* Running system commands: Press ``Meta-!`` in Emacs mode or just ``!`` in Vi navigation mode to see the "Shell command" prompt. There you can enter system commands without leaving the REPL. Selecting text: Press ``Control+Space`` in Emacs mode or ``V`` (major V) in Vi navigation mode. Configuration ************* It is possible to create a ``config.py`` file to customize configuration. ptpython will look in an appropriate platform-specific directory via `appdirs `. See the ``appdirs`` documentation for the precise location for your platform. A ``PTPYTHON_CONFIG_HOME`` environment variable, if set, can also be used to explicitly override where configuration is looked for. Have a look at this example to see what is possible: `config.py `_ Note config file support currently only works when invoking `ptpython` directly. That it, the config file will be ignored when embedding ptpython in an application. IPython support *************** Run ``ptipython`` (prompt_toolkit - IPython), to get a nice interactive shell with all the power that IPython has to offer, like magic functions and shell integration. Make sure that IPython has been installed. (``pip install ipython``) .. image :: https://github.com/jonathanslenders/ptpython/raw/master/docs/images/ipython.png This is also available for embedding: .. code:: python from ptpython.ipython import embed embed(globals(), locals()) Django support ************** `django-extensions `_ has a ``shell_plus`` management command. When ``ptpython`` has been installed, it will by default use ``ptpython`` or ``ptipython``. PDB *** There is an experimental PDB replacement: `ptpdb `_. Windows support *************** ``prompt_toolkit`` and ``ptpython`` works better on Linux and OS X than on Windows. Some things might not work, but it is usable: .. image :: https://github.com/jonathanslenders/ptpython/raw/master/docs/images/windows.png FAQ *** **Q**: The ``Ctrl-S`` forward search doesn't work and freezes my terminal. **A**: Try to run ``stty -ixon`` in your terminal to disable flow control. **Q**: The ``Meta``-key doesn't work. **A**: For some terminals you have to enable the Alt-key to act as meta key, but you can also type ``Escape`` before any key instead. Alternatives ************ - `BPython `_ - `IPython `_ If you find another alternative, you can create an issue and we'll list it here. If you find a nice feature somewhere that is missing in ``ptpython``, also create a GitHub issue and maybe we'll implement it. Special thanks to ***************** - `Pygments `_: Syntax highlighter. - `Jedi `_: Autocompletion library. - `wcwidth `_: Determine columns needed for a wide characters. - `prompt_toolkit `_ for the interface. .. |Build Status| image:: https://api.travis-ci.org/prompt-toolkit/ptpython.svg?branch=master :target: https://travis-ci.org/prompt-toolkit/ptpython# .. |License| image:: https://img.shields.io/github/license/prompt-toolkit/ptpython.svg :target: https://github.com/prompt-toolkit/ptpython/blob/master/LICENSE .. |PyPI| image:: https://pypip.in/version/ptpython/badge.svg :target: https://pypi.python.org/pypi/ptpython/ :alt: Latest Version