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412 lines
14 KiB
412 lines
14 KiB
4 years ago
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Metadata-Version: 2.1
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Name: colorama
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Version: 0.4.3
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Summary: Cross-platform colored terminal text.
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Home-page: https://github.com/tartley/colorama
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Author: Jonathan Hartley
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Author-email: tartley@tartley.com
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Maintainer: Arnon Yaari
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License: BSD
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Keywords: color colour terminal text ansi windows crossplatform xplatform
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Platform: UNKNOWN
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Classifier: Development Status :: 5 - Production/Stable
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Classifier: Environment :: Console
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Classifier: Intended Audience :: Developers
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Classifier: License :: OSI Approved :: BSD License
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Classifier: Operating System :: OS Independent
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Classifier: Programming Language :: Python
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Classifier: Programming Language :: Python :: 2
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Classifier: Programming Language :: Python :: 2.7
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Classifier: Programming Language :: Python :: 3
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Classifier: Programming Language :: Python :: 3.5
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Classifier: Programming Language :: Python :: 3.6
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Classifier: Programming Language :: Python :: 3.7
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Classifier: Programming Language :: Python :: 3.8
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Classifier: Programming Language :: Python :: Implementation :: CPython
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Classifier: Programming Language :: Python :: Implementation :: PyPy
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Classifier: Topic :: Terminals
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Requires-Python: >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*
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.. image:: https://img.shields.io/pypi/v/colorama.svg
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:target: https://pypi.org/project/colorama/
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:alt: Latest Version
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.. image:: https://img.shields.io/pypi/pyversions/colorama.svg
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:target: https://pypi.org/project/colorama/
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:alt: Supported Python versions
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.. image:: https://travis-ci.org/tartley/colorama.svg?branch=master
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:target: https://travis-ci.org/tartley/colorama
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:alt: Build Status
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Download and docs:
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https://pypi.org/project/colorama/
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Source code & Development:
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https://github.com/tartley/colorama
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Colorama for Enterprise:
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https://github.com/tartley/colorama/blob/master/ENTERPRISE.md
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Description
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===========
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Makes ANSI escape character sequences (for producing colored terminal text and
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cursor positioning) work under MS Windows.
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ANSI escape character sequences have long been used to produce colored terminal
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text and cursor positioning on Unix and Macs. Colorama makes this work on
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Windows, too, by wrapping ``stdout``, stripping ANSI sequences it finds (which
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would appear as gobbledygook in the output), and converting them into the
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appropriate win32 calls to modify the state of the terminal. On other platforms,
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Colorama does nothing.
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Colorama also provides some shortcuts to help generate ANSI sequences
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but works fine in conjunction with any other ANSI sequence generation library,
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such as the venerable Termcolor (https://pypi.org/project/termcolor/)
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or the fabulous Blessings (https://pypi.org/project/blessings/).
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This has the upshot of providing a simple cross-platform API for printing
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colored terminal text from Python, and has the happy side-effect that existing
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applications or libraries which use ANSI sequences to produce colored output on
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Linux or Macs can now also work on Windows, simply by calling
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``colorama.init()``.
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An alternative approach is to install ``ansi.sys`` on Windows machines, which
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provides the same behaviour for all applications running in terminals. Colorama
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is intended for situations where that isn't easy (e.g., maybe your app doesn't
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have an installer.)
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Demo scripts in the source code repository print some colored text using
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ANSI sequences. Compare their output under Gnome-terminal's built in ANSI
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handling, versus on Windows Command-Prompt using Colorama:
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.. image:: https://github.com/tartley/colorama/raw/master/screenshots/ubuntu-demo.png
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:width: 661
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:height: 357
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:alt: ANSI sequences on Ubuntu under gnome-terminal.
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.. image:: https://github.com/tartley/colorama/raw/master/screenshots/windows-demo.png
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:width: 668
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:height: 325
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:alt: Same ANSI sequences on Windows, using Colorama.
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These screengrabs show that, on Windows, Colorama does not support ANSI 'dim
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text'; it looks the same as 'normal text'.
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License
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=======
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Copyright Jonathan Hartley & Arnon Yaari, 2013. BSD 3-Clause license; see LICENSE file.
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Dependencies
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============
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None, other than Python. Tested on Python 2.7, 3.5, 3.6, 3.7 and 3.8.
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Usage
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=====
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Initialisation
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--------------
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Applications should initialise Colorama using:
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.. code-block:: python
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from colorama import init
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init()
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On Windows, calling ``init()`` will filter ANSI escape sequences out of any
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text sent to ``stdout`` or ``stderr``, and replace them with equivalent Win32
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calls.
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On other platforms, calling ``init()`` has no effect (unless you request other
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optional functionality; see "Init Keyword Args", below). By design, this permits
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applications to call ``init()`` unconditionally on all platforms, after which
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ANSI output should just work.
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To stop using colorama before your program exits, simply call ``deinit()``.
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This will restore ``stdout`` and ``stderr`` to their original values, so that
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Colorama is disabled. To resume using Colorama again, call ``reinit()``; it is
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cheaper to calling ``init()`` again (but does the same thing).
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Colored Output
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--------------
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Cross-platform printing of colored text can then be done using Colorama's
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constant shorthand for ANSI escape sequences:
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.. code-block:: python
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from colorama import Fore, Back, Style
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print(Fore.RED + 'some red text')
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print(Back.GREEN + 'and with a green background')
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print(Style.DIM + 'and in dim text')
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print(Style.RESET_ALL)
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print('back to normal now')
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...or simply by manually printing ANSI sequences from your own code:
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.. code-block:: python
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print('\033[31m' + 'some red text')
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print('\033[39m') # and reset to default color
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...or, Colorama can be used happily in conjunction with existing ANSI libraries
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such as Termcolor:
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.. code-block:: python
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from colorama import init
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from termcolor import colored
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# use Colorama to make Termcolor work on Windows too
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init()
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# then use Termcolor for all colored text output
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print(colored('Hello, World!', 'green', 'on_red'))
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Available formatting constants are::
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Fore: BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE, RESET.
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Back: BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE, RESET.
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Style: DIM, NORMAL, BRIGHT, RESET_ALL
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``Style.RESET_ALL`` resets foreground, background, and brightness. Colorama will
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perform this reset automatically on program exit.
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Cursor Positioning
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------------------
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ANSI codes to reposition the cursor are supported. See ``demos/demo06.py`` for
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an example of how to generate them.
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Init Keyword Args
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-----------------
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``init()`` accepts some ``**kwargs`` to override default behaviour.
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init(autoreset=False):
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If you find yourself repeatedly sending reset sequences to turn off color
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changes at the end of every print, then ``init(autoreset=True)`` will
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automate that:
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.. code-block:: python
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from colorama import init
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init(autoreset=True)
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print(Fore.RED + 'some red text')
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print('automatically back to default color again')
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init(strip=None):
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Pass ``True`` or ``False`` to override whether ansi codes should be
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stripped from the output. The default behaviour is to strip if on Windows
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or if output is redirected (not a tty).
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init(convert=None):
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Pass ``True`` or ``False`` to override whether to convert ANSI codes in the
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output into win32 calls. The default behaviour is to convert if on Windows
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and output is to a tty (terminal).
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init(wrap=True):
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On Windows, colorama works by replacing ``sys.stdout`` and ``sys.stderr``
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with proxy objects, which override the ``.write()`` method to do their work.
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If this wrapping causes you problems, then this can be disabled by passing
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``init(wrap=False)``. The default behaviour is to wrap if ``autoreset`` or
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``strip`` or ``convert`` are True.
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When wrapping is disabled, colored printing on non-Windows platforms will
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continue to work as normal. To do cross-platform colored output, you can
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use Colorama's ``AnsiToWin32`` proxy directly:
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.. code-block:: python
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import sys
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from colorama import init, AnsiToWin32
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init(wrap=False)
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stream = AnsiToWin32(sys.stderr).stream
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# Python 2
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print >>stream, Fore.BLUE + 'blue text on stderr'
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# Python 3
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print(Fore.BLUE + 'blue text on stderr', file=stream)
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Installation
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=======================
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colorama is currently installable from PyPI:
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pip install colorama
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colorama also can be installed by the conda package manager:
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conda install -c anaconda colorama
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Status & Known Problems
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=======================
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I've personally only tested it on Windows XP (CMD, Console2), Ubuntu
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(gnome-terminal, xterm), and OS X.
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Some presumably valid ANSI sequences aren't recognised (see details below),
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but to my knowledge nobody has yet complained about this. Puzzling.
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See outstanding issues and wishlist:
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https://github.com/tartley/colorama/issues
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If anything doesn't work for you, or doesn't do what you expected or hoped for,
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I'd love to hear about it on that issues list, would be delighted by patches,
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and would be happy to grant commit access to anyone who submits a working patch
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or two.
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Recognised ANSI Sequences
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=========================
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ANSI sequences generally take the form:
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ESC [ <param> ; <param> ... <command>
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Where ``<param>`` is an integer, and ``<command>`` is a single letter. Zero or
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more params are passed to a ``<command>``. If no params are passed, it is
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generally synonymous with passing a single zero. No spaces exist in the
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sequence; they have been inserted here simply to read more easily.
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The only ANSI sequences that colorama converts into win32 calls are::
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ESC [ 0 m # reset all (colors and brightness)
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ESC [ 1 m # bright
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ESC [ 2 m # dim (looks same as normal brightness)
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ESC [ 22 m # normal brightness
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# FOREGROUND:
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ESC [ 30 m # black
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ESC [ 31 m # red
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ESC [ 32 m # green
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ESC [ 33 m # yellow
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ESC [ 34 m # blue
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ESC [ 35 m # magenta
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ESC [ 36 m # cyan
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ESC [ 37 m # white
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ESC [ 39 m # reset
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# BACKGROUND
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ESC [ 40 m # black
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ESC [ 41 m # red
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ESC [ 42 m # green
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ESC [ 43 m # yellow
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ESC [ 44 m # blue
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ESC [ 45 m # magenta
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ESC [ 46 m # cyan
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ESC [ 47 m # white
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ESC [ 49 m # reset
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# cursor positioning
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ESC [ y;x H # position cursor at x across, y down
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ESC [ y;x f # position cursor at x across, y down
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ESC [ n A # move cursor n lines up
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ESC [ n B # move cursor n lines down
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ESC [ n C # move cursor n characters forward
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ESC [ n D # move cursor n characters backward
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# clear the screen
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ESC [ mode J # clear the screen
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# clear the line
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ESC [ mode K # clear the line
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Multiple numeric params to the ``'m'`` command can be combined into a single
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sequence::
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ESC [ 36 ; 45 ; 1 m # bright cyan text on magenta background
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All other ANSI sequences of the form ``ESC [ <param> ; <param> ... <command>``
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are silently stripped from the output on Windows.
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Any other form of ANSI sequence, such as single-character codes or alternative
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initial characters, are not recognised or stripped. It would be cool to add
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them though. Let me know if it would be useful for you, via the Issues on
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GitHub.
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Development
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===========
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Help and fixes welcome!
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Running tests requires:
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- Michael Foord's ``mock`` module to be installed.
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- Tests are written using 2010-era updates to ``unittest``
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To run tests::
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python -m unittest discover -p *_test.py
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This, like a few other handy commands, is captured in a ``Makefile``.
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If you use nose to run the tests, you must pass the ``-s`` flag; otherwise,
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``nosetests`` applies its own proxy to ``stdout``, which confuses the unit
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tests.
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Professional support
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====================
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.. |tideliftlogo| image:: https://cdn2.hubspot.net/hubfs/4008838/website/logos/logos_for_download/Tidelift_primary-shorthand-logo.png
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:alt: Tidelift
|
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:target: https://tidelift.com/subscription/pkg/pypi-colorama?utm_source=pypi-colorama&utm_medium=referral&utm_campaign=readme
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.. list-table::
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:widths: 10 100
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* - |tideliftlogo|
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- Professional support for colorama is available as part of the
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`Tidelift Subscription`_.
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Tidelift gives software development teams a single source for purchasing
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and maintaining their software, with professional grade assurances from
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the experts who know it best, while seamlessly integrating with existing
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tools.
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.. _Tidelift Subscription: https://tidelift.com/subscription/pkg/pypi-colorama?utm_source=pypi-colorama&utm_medium=referral&utm_campaign=readme
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Thanks
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======
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* Marc Schlaich (schlamar) for a ``setup.py`` fix for Python2.5.
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* Marc Abramowitz, reported & fixed a crash on exit with closed ``stdout``,
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providing a solution to issue #7's setuptools/distutils debate,
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and other fixes.
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* User 'eryksun', for guidance on correctly instantiating ``ctypes.windll``.
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* Matthew McCormick for politely pointing out a longstanding crash on non-Win.
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* Ben Hoyt, for a magnificent fix under 64-bit Windows.
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* Jesse at Empty Square for submitting a fix for examples in the README.
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* User 'jamessp', an observant documentation fix for cursor positioning.
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* User 'vaal1239', Dave Mckee & Lackner Kristof for a tiny but much-needed Win7
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fix.
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* Julien Stuyck, for wisely suggesting Python3 compatible updates to README.
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* Daniel Griffith for multiple fabulous patches.
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* Oscar Lesta for a valuable fix to stop ANSI chars being sent to non-tty
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output.
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* Roger Binns, for many suggestions, valuable feedback, & bug reports.
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* Tim Golden for thought and much appreciated feedback on the initial idea.
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* User 'Zearin' for updates to the README file.
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* John Szakmeister for adding support for light colors
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* Charles Merriam for adding documentation to demos
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* Jurko for a fix on 64-bit Windows CPython2.5 w/o ctypes
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* Florian Bruhin for a fix when stdout or stderr are None
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* Thomas Weininger for fixing ValueError on Windows
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* Remi Rampin for better Github integration and fixes to the README file
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* Simeon Visser for closing a file handle using 'with' and updating classifiers
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to include Python 3.3 and 3.4
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* Andy Neff for fixing RESET of LIGHT_EX colors.
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* Jonathan Hartley for the initial idea and implementation.
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