在 https://repl.it/languages/python 使用 python 和 python3，执行这个 re 都没问题
import re;re.findall(u'[\U00010000-\U0001FFFFF]', u'\U0001f61b',re.U)
但是在 Ubuntu 14.04 LTS 的 python 和 python3.4 执行
Python 3.4.0 (default, Jun 19 2015, 14:20:21)
[GCC 4.8.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import re;re.findall(u'[\U00010000-\U0001FFFFF]', u'\U0001f61b',re.U)
['']
>>>
Python 2.7.6 (default, Jun 22 2015, 17:58:13)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import re;re.findall(u'[\U00010000-\U0001FFFFF]', u'\U0001f61b',re.U)
[u'\U0001f61b']
>>>
在 CentOS 执行
Python 2.7.10 (default, Oct 21 2015, 19:55:03)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import re
>>> re.findall(u'[\U00010000-\U0001FFFFF]', u'\U0001f61b',re.U)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/python2.7/lib/python2.7/re.py", line 181, in findall
return _compile(pattern, flags).findall(string)
File "/usr/local/python2.7/lib/python2.7/re.py", line 251, in _compile
raise error, v # invalid expression
sre_constants.error: bad character range
>>>
Python 2.6.6 (r266:84292, Jul 23 2015, 15:22:56)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import re;re.findall(u'[\U00010000-\U0001FFFFF]', u'\U0001f61b',re.U)
[u'\U0001f61b']
>>>
想请教下各位大侠的是长什么样的？对比了下，2.7 的 re 源码是一样的，而 GCC 版本明显不同，但是同个 CentOS 上 Python 2.6 是正常的
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