如何在Python中将彩色文本输出到终端?
当前回答
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
其他回答
定义开始颜色的字符串和结束颜色的字符串。然后打印文本,开始字符串在前面,结束字符串在结尾。
CRED = '\033[91m'
CEND = '\033[0m'
print(CRED + "Error, does not compute!" + CEND)
这将在Bash和urxvt中使用Zenburn风格的配色方案生成以下内容:
通过实验,我们可以获得更多的颜色:
注意:\33[5m和\33[6m闪烁。
这样我们可以创建一个完整的颜色集合:
CEND = '\33[0m'
CBOLD = '\33[1m'
CITALIC = '\33[3m'
CURL = '\33[4m'
CBLINK = '\33[5m'
CBLINK2 = '\33[6m'
CSELECTED = '\33[7m'
CBLACK = '\33[30m'
CRED = '\33[31m'
CGREEN = '\33[32m'
CYELLOW = '\33[33m'
CBLUE = '\33[34m'
CVIOLET = '\33[35m'
CBEIGE = '\33[36m'
CWHITE = '\33[37m'
CBLACKBG = '\33[40m'
CREDBG = '\33[41m'
CGREENBG = '\33[42m'
CYELLOWBG = '\33[43m'
CBLUEBG = '\33[44m'
CVIOLETBG = '\33[45m'
CBEIGEBG = '\33[46m'
CWHITEBG = '\33[47m'
CGREY = '\33[90m'
CRED2 = '\33[91m'
CGREEN2 = '\33[92m'
CYELLOW2 = '\33[93m'
CBLUE2 = '\33[94m'
CVIOLET2 = '\33[95m'
CBEIGE2 = '\33[96m'
CWHITE2 = '\33[97m'
CGREYBG = '\33[100m'
CREDBG2 = '\33[101m'
CGREENBG2 = '\33[102m'
CYELLOWBG2 = '\33[103m'
CBLUEBG2 = '\33[104m'
CVIOLETBG2 = '\33[105m'
CBEIGEBG2 = '\33[106m'
CWHITEBG2 = '\33[107m'
以下是生成测试的代码:
x = 0
for i in range(24):
colors = ""
for j in range(5):
code = str(x+j)
colors = colors + "\33[" + code + "m\\33[" + code + "m\033[0m "
print(colors)
x = x + 5
下面是一个诅咒示例:
import curses
def main(stdscr):
stdscr.clear()
if curses.has_colors():
for i in xrange(1, curses.COLORS):
curses.init_pair(i, i, curses.COLOR_BLACK)
stdscr.addstr("COLOR %d! " % i, curses.color_pair(i))
stdscr.addstr("BOLD! ", curses.color_pair(i) | curses.A_BOLD)
stdscr.addstr("STANDOUT! ", curses.color_pair(i) | curses.A_STANDOUT)
stdscr.addstr("UNDERLINE! ", curses.color_pair(i) | curses.A_UNDERLINE)
stdscr.addstr("BLINK! ", curses.color_pair(i) | curses.A_BLINK)
stdscr.addstr("DIM! ", curses.color_pair(i) | curses.A_DIM)
stdscr.addstr("REVERSE! ", curses.color_pair(i) | curses.A_REVERSE)
stdscr.refresh()
stdscr.getch()
if __name__ == '__main__':
print "init..."
curses.wrapper(main)
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)
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:
#
如果您正在使用Django:
>>> from django.utils.termcolors import colorize
>>> print colorize("Hello, World!", fg="blue", bg='red',
... opts=('bold', 'blink', 'underscore',))
Hello World!
>>> help(colorize)
快照:
(我通常在runserver终端上使用彩色输出进行调试,所以我添加了它。)
您可以测试它是否安装在您的机器中:$python-c“import django;print django.VERSION”。要安装它,请查看:如何安装django
试试看!!
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