最低等级：

class log:
    f = lambda color: lambda string: print(color + string + "\33[0m")

    black = f("\33[30m")
    red = f("\33[31m")
    green = f("\33[32m")
    yellow = f("\33[33m")
    blue = f("\33[34m")
    magenta = f("\33[35m")
    cyan = f("\33[36m")
    white = f("\33[37m")

# Usage
log.blue("Blue World!")

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')

您可以使用任何语言提供的shell转义字符。这些转义字符以ESC字符开头，后跟一些参数。

例如，要在终端中输出红色“Hello，World！”字符串：

echo "\e[31m Hello, World! \e[0m"

或者从Python脚本：

print("\e[31m Hello world \e[0m")

此外，我写了一篇关于Escape序列的文章，这可能会帮助您更好地理解这个机制。

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)

我最终做了这个，我觉得这是最干净的：

formatters = {
    'RED': '\033[91m',
    'GREEN': '\033[92m',
    'END': '\033[0m',
}

print 'Master is currently {RED}red{END}!'.format(**formatters)
print 'Help make master {GREEN}green{END} again!'.format(**formatters)

这里有一个简单的函数，我使用它来打印彩色文本消息，而不必记住ANSI代码，而是使用标准RGB元组来定义前景和背景颜色。

def print_in_color(txt_msg, fore_tuple, back_tuple, ):
    # Prints the text_msg in the foreground color specified by fore_tuple with the background specified by back_tuple
    # text_msg is the text, fore_tuple is foreground color tuple (r,g,b), back_tuple is background tuple (r,g,b)
    rf,bf,gf = fore_tuple
    rb,gb,bb = back_tuple
    msg = '{0}' + txt_msg
    mat = '\33[38;2;' + str(rf) + ';' + str(gf) + ';' + str(bf) + ';48;2;' + str(rb) + ';' +str(gb) + ';' + str(bb) + 'm'
    print(msg .format(mat))
    print('\33[0m') # Returns default print color to back to black

# Example of use using a message with variables
fore_color = 'cyan'
back_color = 'dark green'
msg = 'foreground color is {0} and the background color is {1}'.format(fore_color, back_color)
print_in_color(msg, (0,255,255), (0,127,127))