如何在Python中将彩色文本输出到终端?


当前回答

asciimatics为构建文本UI和动画提供了可移植的支持:

#!/usr/bin/env python
from asciimatics.effects import RandomNoise  # $ pip install asciimatics
from asciimatics.renderers import SpeechBubble, Rainbow
from asciimatics.scene import Scene
from asciimatics.screen import Screen
from asciimatics.exceptions import ResizeScreenError


def demo(screen):
    render = Rainbow(screen, SpeechBubble('Rainbow'))
    effects = [RandomNoise(screen, signal=render)]
    screen.play([Scene(effects, -1)], stop_on_resize=True)

while True:
    try:
        Screen.wrapper(demo)
        break
    except ResizeScreenError:
        pass

Asciicast:

其他回答

Rich是一个相对较新的Python库,用于在终端中处理颜色。

在Rich中有几种处理颜色的方法。最快的入门方法是富打印方法,它将类似BBCode的语法呈现到ANSI控制代码中:

from rich import print
print("[red]Color[/] in the [bold magenta]Terminal[/]!")

还有其他方法可以通过Rich(正则表达式、语法)和相关的格式化功能应用颜色。

在我看来,这是最简单的方法。只要您具有所需颜色的RGB值,这应该可以工作:

def colored(r, g, b, text):
    return f"\033[38;2;{r};{g};{b}m{text}\033[0m"

打印红色文本的示例:

text = 'Hello, World!'
colored_text = colored(255, 0, 0, text)
print(colored_text)

#or

print(colored(255, 0, 0, 'Hello, World!'))

多色文本

text = colored(255, 0, 0, 'Hello, ') + colored(0, 255, 0, 'World')
print(text)

我创建了一个项目(控制台颜色),并已将其发布到PyPI。

你可以抛出pip安装控制台颜色来安装它。

我用斯芬克斯写了文档,读了文档,看这里。

你可以从Googlecolab获得更多的例子。

我仍然发布了一些示例来吸引用户点击上面的链接:

# cprint is something like below
# cprint(text: str, fore: T_RGB = None, bg: T_RGB = None, style: Style = '')
# where T_RGB = Union[Tuple[int, int, int], str] for example. You can input (255, 0, 0) or '#ff0000' or 'ff0000'. They are OK.
# The Style you can input the ``Style.`` (the IDE will help you to choose what you wanted)

# from console_color import RGB, Fore, Style, cprint, create_print
from console_color import *

cprint("Hello, World!", RGB.RED, RGB.YELLOW, Style.BOLD+Style.URL+Style.STRIKE)
cprint("Hello, World!", fore=(255, 0, 0), bg="ffff00", style=Style.BOLD+Style.URL+Style.STRIKE)

当然,您不必输入所有参数。您可以只添加所需的属性。


老实说,这个项目并不特别。它只使用f“\033[{target};2;{r};{g};{b}m{text}{style}”其中target是38或48,text是您的输入字符串,style是“\33[0m',“\33[1m'…”\033[9m'。

我只是让它易于使用(至少对我来说)。

当我在寻找如何为日志上色时,我被谷歌感动了:

彩色原木

安装

pip install coloredlogs

用法

最小使用量:

import logging
import coloredlogs

coloredlogs.install()  # install a handler on the root logger

logging.debug('message with level debug')
logging.info('message with level info')
logging.warning('message with level warning')
logging.error('message with level error')
logging.critical('message with level critical')

结果如下:

从消息级调试开始:

import logging
import coloredlogs

coloredlogs.install(level='DEBUG')  # install a handler on the root logger with level debug

logging.debug('message with level debug')
logging.info('message with level info')
logging.warning('message with level warning')
logging.error('message with level error')
logging.critical('message with level critical')

结果如下:

隐藏库中的邮件:

import logging
import coloredlogs

logger = logging.getLogger(__name__)  # get a specific logger object
coloredlogs.install(level='DEBUG')  # install a handler on the root logger with level debug
coloredlogs.install(level='DEBUG', logger=logger)  # pass a specific logger object

logging.debug('message with level debug')
logging.info('message with level info')
logging.warning('message with level warning')
logging.error('message with level error')
logging.critical('message with level critical')

结果如下:

设置日志消息格式:

import logging
import coloredlogs

logger = logging.getLogger(__name__)  # get a specific logger object
coloredlogs.install(level='DEBUG')  # install a handler on the root logger with level debug
coloredlogs.install(level='DEBUG', logger=logger)  # pass a specific logger object
coloredlogs.install(
    level='DEBUG', logger=logger,
    fmt='%(asctime)s.%(msecs)03d %(filename)s:%(lineno)d %(levelname)s %(message)s'
)

logging.debug('message with level debug')
logging.info('message with level info')
logging.warning('message with level warning')
logging.error('message with level error')
logging.critical('message with level critical')

结果如下:

可用的格式属性:

%(asctime)s-发出日志记录调用时,作为人类可读字符串的时间%(created)f-发出日志调用时的浮点时间%(filename)s-文件名%(funcName)s-包含日志记录调用的函数的名称%(hostname)s-系统主机名%(levelname)s-文本日志记录级别%(levelno)s-整数日志记录级别%(lineno)d-发出记录调用的行号%(message)s-传递给日志记录调用的消息(与%(msg)s相同)%(module)s—发出日志记录调用的不带扩展名的文件名%(毫秒)d-发出日志调用的毫秒部分%(msg)s-传递给日志记录调用的消息(与%(Message)s相同)%(name)s-记录器名称%(pathname)s—包含日志记录调用的文件的完整路径名%(process)d-进程ID%(processName)s-进程名称%(programname)s-系统程序名%(relativeCreated)d-发出日志调用时的时间(以毫秒为单位),相对于加载日志模块的时间%(thread)d-线程ID%(threadName)s-线程名称%(username)s-系统用户名

来源:

Coloredlogs包

日志记录库

https://raw.github.com/fabric/fabric/master/fabric/colors.py

"""
.. versionadded:: 0.9.2

Functions for wrapping strings in ANSI color codes.

Each function within this module returns the input string ``text``, wrapped
with ANSI color codes for the appropriate color.

For example, to print some text as green on supporting terminals::

    from fabric.colors import green

    print(green("This text is green!"))

Because these functions simply return modified strings, you can nest them::

    from fabric.colors import red, green

    print(red("This sentence is red, except for " + \
          green("these words, which are green") + "."))

If ``bold`` is set to ``True``, the ANSI flag for bolding will be flipped on
for that particular invocation, which usually shows up as a bold or brighter
version of the original color on most terminals.
"""


def _wrap_with(code):

    def inner(text, bold=False):
        c = code
        if bold:
            c = "1;%s" % c
        return "\033[%sm%s\033[0m" % (c, text)
    return inner

red = _wrap_with('31')
green = _wrap_with('32')
yellow = _wrap_with('33')
blue = _wrap_with('34')
magenta = _wrap_with('35')
cyan = _wrap_with('36')
white = _wrap_with('37')