python 2.7.11，下载链接 https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz，如下载速度太慢可在豆瓣pypi搜索下载https://pypi.doubanio.com/simple/
python升级到2.7.11可解决 内置的 socket库的setdefaulttimeout方法和multiprocessing库的manage队列冲突的问题，在2.7.3版本是需要改源码才能解决。问题如下
Traceback (most recent call last):
File "/usr/local/lib/python2.7/multiprocessing/process.py", line , in _bootstrap
self.run()
File "/usr/local/lib/python2.7/multiprocessing/process.py", line , in run
self._target(*self._args, **self._kwargs)
File "agentInstaller.py", line , in getInstallInfo
lock.acquire()
File "/usr/local/lib/python2.7/multiprocessing/managers.py", line , in acquire
return self._callmethod('acquire', (blocking,))
File "/usr/local/lib/python2.7/multiprocessing/managers.py", line , in _callmethod
self._connect()
File "/usr/local/lib/python2.7/multiprocessing/managers.py", line , in _connect
conn = self._Client(self._token.address, authkey=self._authkey)
File "/usr/local/lib/python2.7/multiprocessing/connection.py", line , in Client
answer_challenge(c, authkey)
File "/usr/local/lib/python2.7/multiprocessing/connection.py", line , in answer_challenge
message = connection.recv_bytes() # reject large message
IOError: [Errno ] Resource temporarily unavailable
解决问题可以修改源代码文件 /usr/local/lib/python2.7/multiprocessing/connection.py
def Pipe(duplex=True):
'''
Returns pair of connection objects at either end of a pipe
'''
if duplex:
s1, s2 = socket.socketpair()
++ s1.setblocking(True)
++ s2.setblocking(True)
c1 = _multiprocessing.Connection(os.dup(s1.fileno()))
c2 = _multiprocessing.Connection(os.dup(s2.fileno()))
s1.close()
s2.close()
else:
fd1, fd2 = os.pipe()
c1 = _multiprocessing.Connection(fd1, writable=False)
c2 = _multiprocessing.Connection(fd2, readable=False) return c1, c2 def __init__(self, address, family, backlog=):
self._socket = socket.socket(getattr(socket, family))
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, )
++ self._socket.setblocking(True)
self._socket.bind(address)
self._socket.listen(backlog)
self._address = self._socket.getsockname()
self._family = family
self._last_accepted = None def accept(self):
s, self._last_accepted = self._socket.accept()
++ s.setblocking(True)
fd = duplicate(s.fileno())
conn = _multiprocessing.Connection(fd)
s.close()
return conn def SocketClient(address):
'''
Return a connection object connected to the socket given by `address`
'''
family = address_type(address)
s = socket.socket( getattr(socket, family) )
++ s.setblocking(True)
t = _init_timeout()
修改 /usr/local/lib/python2.7/test/test_multiprocessing.py
assert sio.getvalue() == 'foo' ++ # Test interaction with socket timeouts - see Issue #
++ #
++
++ class TestTimeouts(unittest.TestCase):
++ @classmethod
++ def _test_timeout(cls, child, address):
++ time.sleep()
++ child.send()
++ child.close()
++ conn = multiprocessing.connection.Client(address)
++ conn.send()
++ conn.close()
++
++ def test_timeout(self):
++ old_timeout = socket.getdefaulttimeout()
++ try:
++ socket.setdefaulttimeout(0.1)
++ parent, child = multiprocessing.Pipe(duplex=True)
++ l = multiprocessing.connection.Listener(family='AF_INET')
++ p = multiprocessing.Process(target=self._test_timeout,
++ args=(child, l.address))
++ p.start()
++ child.close()
++ self.assertEqual(parent.recv(), )
++ parent.close()
++ conn = l.accept()
++ self.assertEqual(conn.recv(), )
++ conn.close()
++ l.close()
++ p.join()
++ finally:
++ socket.setdefaulttimeout(old_timeout)
++
++
++ testcases_other = [OtherTest, TestInvalidHandle, TestInitializers,
-- #- TestStdinBadfiledescriptor]
++ TestStdinBadfiledescriptor, TestTimeouts]
升级2.7.11的其他好处就去看官网描述吧。安装过程如下：
curl -k https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz -o python-2.7.11.tgz yum -y install gcc gcc-c++ autoconf yum -y install ncurses ncurses-devel yum -y install mysql-devel tar xf Python-2.7..tgz
cd Python-2.7./
./configure
make -j4 && make install
升级完重新打开secureCRT窗口
[root@master ~]# python
Python 2.7. (default, Nov , ::)
[GCC 4.4. (Red Hat 4.4.-)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
安装 pip，下载 get-pip.py
mv /usr/bin/python /usr/bin/python2.6.6
ln -s /usr/local/bin/python /usr/bin/python
vim /usr/bin/yum 修改成 /usr/bin/python2.6.6
python get-pip.py
whereis pip
ln -s /usr/local/bin/pip2. /usr/bin/pip
安装readline
yum -y install readline-devel
yum -y install patch
yum -y install gcc python-devel zlib-devel openssl-devel libffi-devel pip install readline
若是使用 easy_install，则需要下载安装 setuptools 安装，下载链接 https://pypi.python.org/pypi/setuptools#downloads，安装过程缺少相关软件则同样下载安装包后上传至服务器安装，如果提示
MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
TypeError: __call__() takes exactly arguments ( given)
则需要注释掉该行代码，并补充如下代码
# MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
MARKER_EXPR = originalTextFor(MARKER_EXPR)("marker")
接着可能会遇到 “缺少 zlib 模块” 的情况，因为我们已经安装过 zlib-devel 模块和 zlib.x86_64 ，则只需要重新在 python 安装包中 make && make install 即可。
安装MySQLdb
pip install MySQL-python
或者源码安装
tar zxf MySQL-python-1.2..tar.gz
cd MySQL-python-1.2.
python setup.py build
python setup.py install
如果出现下面问题
>>> import MySQLdb
/usr/local/lib/python2./site-packages/MySQL_python-1.2.-py2.-linux-x86_64.egg/_mysql.py:: UserWarning: Module _mysql was already imported from /usr/local/lib/python2./site-packages/MySQL_python-1.2.-py2.-linux-x86_64.egg/_mysql.pyc, but /home/opd/tmpFiles/singleExec/MySQL-python-1.2. is being added to sys.path
Traceback (most recent call last):
File "<stdin>", line , in <module>
File "MySQLdb/__init__.py", line , in <module>
import _mysql
File "build/bdist.linux-x86_64/egg/_mysql.py", line , in <module>
File "build/bdist.linux-x86_64/egg/_mysql.py", line , in __bootstrap__
ImportError: libmysqlclient.so.: cannot open shared object file: No such file or directory
>>>
解决方法如下
# 根据最后提示，应该是找不着一个交libmysqlclient.so.18的文件，于是到mysql安装目录里找到这个文件并且做一个软连接到/usr/lib
ln -s /usr/local/mysql/lib/libmysqlclient.so. /usr/lib64/libmysqlclient.so.
# 如果是64系统则：
ln -s /usr/local/mysql/lib/libmysqlclient.so. /usr/lib64/libmysqlclient.so.
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