在中标麒麟的6的系统中安装了pip 19.2.3 的版本，但无法使用，报如下错误：

[dave@www.cndba.cn pip-19.2.3]# pip list
Traceback (most recent call last):
  File "/usr/bin/pip", line 9, in <module>
    load_entry_point('pip==19.2.3', 'console_scripts', 'pip')()
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 299, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 2229, in load_entry_point
    return ep.load()
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 1948, in load
    entry = __import__(self.module_name, globals(),globals(), ['__name__'])
  File "/usr/lib/python2.6/site-packages/pip-19.2.3-py2.6.egg/pip/_internal/__init__.py", line 19, in <module>
    from pip._vendor.urllib3.exceptions import DependencyWarning
  File "/usr/lib/python2.6/site-packages/pip-19.2.3-py2.6.egg/pip/_vendor/urllib3/__init__.py", line 7, in <module>
    from .connectionpool import (
  File "/usr/lib/python2.6/site-packages/pip-19.2.3-py2.6.egg/pip/_vendor/urllib3/connectionpool.py", line 93
    _blocking_errnos = {errno.EAGAIN, errno.EWOULDBLOCK}
                                    ^
SyntaxError: invalid syntax
[dave@www.cndba.cn pip-19.2.3]# 


[dave@www.cndba.cn pip-9.0.0]# cat /etc/issue
NeoKylin Linux General Server release 6.0  (Dhaulagiri) 
Kernel /r on an /m

[dave@www.cndba.cn pip-9.0.0]# uname -r
2.6.32-220.el6.x86_64

推测是pip 包版本太新，和OS 版本不兼容，将pip版本降低到9.0 后，可以正常使用。

[dave@www.cndba.cn pip-9.0.0]# pip --version
pip 9.0.0 from /usr/lib/python2.6/site-packages/pip-9.0.0-py2.6.egg (python 2.6)
[dave@www.cndba.cn pip-9.0.0]# 
[dave@www.cndba.cn pip-9.0.0]# pip list
DEPRECATION: Python 2.6 is no longer supported by the Python core team, please upgrade your Python. A future version of pip will drop support for Python 2.6
DEPRECATION: The default format will switch to columns in the future. You can use --format=legacy (or define a list_format in your pip.conf) to disable this warning.
Beaker (1.3.1)
cas (0.15)
cups (1.0)
cupshelpers (1.0)
decorator (3.0.1)
distribute (0.6.10)
ethtool (0.6)
firstboot (1.110)
freeipa (2.0.0a0)
iniparse (0.3.1)
iotop (0.3.2)
ipapython (2.1.3)
iwlib (1.0)
kerberos (1.0)
lxml (2.2.3)
Mako (0.3.4)
MarkupSafe (0.9.2)
matplotlib (0.99.1.1)
netaddr (0.7.5)
nose (0.10.4)
numpy (1.3.0)
paramiko (1.7.5)
pip (9.0.0)
pycrypto (2.0.1)

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