你正在阅读 Celery 3.1 的文档。开发版本文档见: 此处.
# -*- coding: utf-8 -*-
"""
celery.utils.term
~~~~~~~~~~~~~~~~~
Terminals and colors.
"""
from __future__ import absolute_import
import platform
from .encoding import safe_str
BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE = range(8)
OP_SEQ = '\033[%dm'
RESET_SEQ = '\033[0m'
COLOR_SEQ = '\033[1;%dm'
fg = lambda s: COLOR_SEQ % s
SYSTEM = platform.system()
IS_WINDOWS = SYSTEM == 'Windows'
[文档]class colored(object):
"""Terminal colored text.
Example::
>>> c = colored(enabled=True)
>>> print(str(c.red('the quick '), c.blue('brown ', c.bold('fox ')),
... c.magenta(c.underline('jumps over')),
... c.yellow(' the lazy '),
... c.green('dog ')))
"""
def __init__(self, *s, **kwargs):
self.s = s
self.enabled = not IS_WINDOWS and kwargs.get('enabled', True)
self.op = kwargs.get('op', '')
self.names = {'black': self.black,
'red': self.red,
'green': self.green,
'yellow': self.yellow,
'blue': self.blue,
'magenta': self.magenta,
'cyan': self.cyan,
'white': self.white}
def _add(self, a, b):
return unicode(a) + unicode(b)
def _fold_no_color(self, a, b):
try:
A = a.no_color()
except AttributeError:
A = unicode(a)
try:
B = b.no_color()
except AttributeError:
B = unicode(b)
return safe_str(A) + safe_str(B)
[文档] def embed(self):
prefix = ''
if self.enabled:
prefix = self.op
return prefix + safe_str(reduce(self._add, self.s))
def __unicode__(self):
suffix = ''
if self.enabled:
suffix = RESET_SEQ
return safe_str(self.embed() + suffix)
def __str__(self):
return safe_str(self.__unicode__())
def __repr__(self):
return repr(self.no_color())
def __add__(self, other):
return unicode(self) + unicode(other)