如何在Python中将彩色文本输出到终端?


当前回答

我最喜欢的方式是使用祝福库(完整披露:我写的)。例如:

from blessings import Terminal

t = Terminal()
print t.red('This is red.')
print t.bold_bright_red_on_black('Bright red on black')

要打印彩色砖,最可靠的方法是使用背景色打印空间。我使用此技术绘制鼻子进度条:

print t.on_green(' ')

您还可以在特定位置打印:

with t.location(0, 5):
    print t.on_yellow(' ')

如果你必须在游戏过程中使用其他终端功能,你也可以这样做。您可以使用Python的标准字符串格式来保持其可读性:

print '{t.clear_eol}You just cleared a {t.bold}whole{t.normal} line!'.format(t=t)

Blessings的优点在于它能在各种终端上工作,而不仅仅是ANSI颜色的终端。它还将不可读的转义序列排除在代码之外,同时保持使用简洁。玩得高兴

其他回答

我的两分钱(PyColorTerm):

安装:

sudo apt-get install python-pip
pip install pycolorterm

Python脚本:

from pycolorterm import pycolorterm

with pycolorterm.pretty_output(pycolorterm.FG_GREEN) as out:
    out.write('Works OK!')

“工作正常!”显示为绿色。

class ColorText:
    """
    Use ANSI escape sequences to print colors +/- bold/underline to bash terminal.

    Examples
    --------
    >>> ColorText('HelloWorld').bold()
    >>> ColorText('HelloWorld').blue()
    >>> ColorText('HelloWorld').bold().custom("#bebebe")
    >>> ColorText('HelloWorld').underline().custom('dodgerblue')
    >>> ColorText.demo()

    Notes
    -----
    - execute ColorText.demo() for a printout of colors.
    """

    @classmethod
    def demo(cls):
        """Prints examples of all colors in normal, bold, underline, bold+underline."""
        for color in dir(ColorText):
            if all([color.startswith("_") is False,
                    color not in ["bold", "underline", "demo", "custom"],
                    callable(getattr(ColorText, color))]):
                print(getattr(ColorText(color), color)(),
                      "\t",
                      getattr(ColorText(f"bold {color}").bold(), color)(),
                      "\t",
                      getattr(ColorText(f"underline {color}").underline(), color)(),
                      "\t",
                      getattr(ColorText(f"bold underline {color}").underline().bold(), color)())
        print(ColorText("Input can also be color hex or R,G,B with ColorText.custom()").bold())
        pass

    def __init__(self, text: str = ""):
        self.text = text
        self.ending = "\033[0m"
        self.colors = []
        pass

    def __repr__(self):
        return self.text

    def __str__(self):
        return self.text

    def bold(self):
        self.text = "\033[1m" + self.text + self.ending
        return self

    def underline(self):
        self.text = "\033[4m" + self.text + self.ending
        return self

    def green(self):
        self.text = "\033[92m" + self.text + self.ending
        self.colors.append("green")
        return self

    def purple(self):
        self.text = "\033[95m" + self.text + self.ending
        self.colors.append("purple")
        return self

    def blue(self):
        self.text = "\033[94m" + self.text + self.ending
        self.colors.append("blue")
        return self

    def ltblue(self):
        self.text = "\033[34m" + self.text + self.ending
        self.colors.append("lightblue")
        return self

    def pink(self):
        self.text = "\033[35m" + self.text + self.ending
        self.colors.append("pink")
        return self

    def gray(self):
        self.text = "\033[30m" + self.text + self.ending
        self.colors.append("gray")
        return self

    def ltgray(self):
        self.text = "\033[37m" + self.text + self.ending
        self.colors.append("ltgray")
        return self

    def warn(self):
        self.text = "\033[93m" + self.text + self.ending
        self.colors.append("yellow")
        return self

    def fail(self):
        self.text = "\033[91m" + self.text + self.ending
        self.colors.append("red")
        return self

    def ltred(self):
        self.text = "\033[31m" + self.text + self.ending
        self.colors.append("lightred")
        return self

    def cyan(self):
        self.text = "\033[36m" + self.text + self.ending
        self.colors.append("cyan")
        return self

    def custom(self, *color_hex):
        """Print in custom color, `color_hex` - either actual hex, or tuple(r,g,b)"""
        if color_hex != (None, ):  # allows printing white on black background, black otherwise
            if len(color_hex) == 1:
                c = rgb2hex(colorConverter.to_rgb(color_hex[0]))
                rgb = ImageColor.getcolor(c, "RGB")
            else:
                assert (
                    len(color_hex) == 3
                ), "If not a color hex, ColorText.custom should have R,G,B as input"
                rgb = color_hex
            self.text = "\033[{};2;{};{};{}m".format(38, *rgb) + self.text + self.ending
            self.colors.append(rgb)
        return self

    pass

在Windows上,您可以使用模块“win32console”(在某些Python发行版中可用)或模块“ctypes”(Python 2.5及更高版本)访问Win32 API。

要查看支持这两种方式的完整代码,请参阅Testoob中的彩色控制台报告代码。

ctypes示例:

import ctypes

# Constants from the Windows API
STD_OUTPUT_HANDLE = -11
FOREGROUND_RED    = 0x0004 # text color contains red.

def get_csbi_attributes(handle):
    # Based on IPython's winconsole.py, written by Alexander Belchenko
    import struct
    csbi = ctypes.create_string_buffer(22)
    res = ctypes.windll.kernel32.GetConsoleScreenBufferInfo(handle, csbi)
    assert res

    (bufx, bufy, curx, cury, wattr,
    left, top, right, bottom, maxx, maxy) = struct.unpack("hhhhHhhhhhh", csbi.raw)
    return wattr


handle = ctypes.windll.kernel32.GetStdHandle(STD_OUTPUT_HANDLE)
reset = get_csbi_attributes(handle)

ctypes.windll.kernel32.SetConsoleTextAttribute(handle, FOREGROUND_RED)
print "Cherry on top"
ctypes.windll.kernel32.SetConsoleTextAttribute(handle, reset)

我建议这个新图书馆Printy。他们刚刚发布了版本1.2.0作为跨平台库。

过来看:GitHub上的Printy

它基于标志,所以你可以做类似的事情

from printy import printy

# With global flags, this will apply a bold (B) red (r) color and an underline (U) to the whole text
printy("Hello, World!", "rBU")

# With inline formats, this will apply a dim (D)
#blue (b) to the word 'Hello' and a stroken (S)
#yellow (y) to the word 'world', and the rest will remain as the predefined format
printy("this is a [bD]Hello@ [yS]world@ text")

对于Windows,除非使用Win32 API,否则无法使用颜色打印到控制台。

对于Linux,它就像使用打印一样简单,转义序列如下:

颜色

要使字符像方框一样打印,这实际上取决于控制台窗口使用的字体。磅符号效果很好,但它取决于字体:

#