<p>使用<code>itertools.combinations</code>和<code>locals()</code>的另一种方法:</p>
<pre><code>from itertools import combinations
from pprint import pprint
# Colors
RED="RED"
ORANGE="ORANGE"
YELLOW="YELLOW"
GREEN="GREEN"
CYAN="CYAN"
BLUE="BLUE"
MAGENTA="MAGENTA"
# Modes
PANIC="PANIC"
SOLID="SOLID"
BREATHING="BREATHING"
# Special sub-modes (for panic)
BLINKING="BLINKING"
v_consts = {k:v for k, v in locals().items() if k.isupper()}
combs = combinations(v_consts.values(), 2)
d_consts = {'%s_%s' % k: '%s_%s' % k for k in combs}
pprint(d_consts)
# Edit:
# If you want to add the created variables in Python's scope
# You can do something like this
globals().update(d_consts)
print SOLID_BLINKING, type(SOLID_BLINKING)
</code></pre>
<p>输出:</p>
<pre><code>{'BLINKING_CYAN': 'BLINKING_CYAN',
'BLINKING_MAGENTA': 'BLINKING_MAGENTA',
'BLINKING_ORANGE': 'BLINKING_ORANGE',
'BLINKING_PANIC': 'BLINKING_PANIC',
'BLINKING_RED': 'BLINKING_RED',
...
'YELLOW_MAGENTA': 'YELLOW_MAGENTA',
'YELLOW_ORANGE': 'YELLOW_ORANGE',
'YELLOW_PANIC': 'YELLOW_PANIC',
'YELLOW_RED': 'YELLOW_RED'}
SOLID_BLINKING <type 'str'>
</code></pre>