如果要在另一个Python程序的内核中运行代码，最简单的方法是连接BlockingKernelManager。现在最好的例子是Paul
Ivanov的vim-ipython客户端，或IPython自己的终端客户端。

要点：

• ipython内核在中编写JSON连接文件，IPYTHONDIR/profile_<name>/security/kernel-<id>.json其中包含各种客户端连接和执行代码所需的信息。
• KernelManagers是用于与内核进行通信（执行代码，接收结果等）的对象。*

一个工作示例：

在shell中，执行以下操作ipython kernel（或ipython qtconsole如果要与已经在运行的GUI共享内核，请执行以下操作）：

$> ipython kernel
[IPKernelApp] To connect another client to this kernel, use:
[IPKernelApp] --existing kernel-6759.json

这写了’kernel-6759.json’文件

然后，您可以运行此Python代码段以连接KernelManager，并运行一些代码：

from IPython.lib.kernel import find_connection_file
from IPython.zmq.blockingkernelmanager import BlockingKernelManager

# this is a helper method for turning a fraction of a connection-file name
# into a full path.  If you already know the full path, you can just use that
cf = find_connection_file('6759')

km = BlockingKernelManager(connection_file=cf)
# load connection info and init communication
km.load_connection_file()
km.start_channels()

def run_cell(km, code):
    # now we can run code.  This is done on the shell channel
    shell = km.shell_channel
    print
    print "running:"
    print code

    # execution is immediate and async, returning a UUID
    msg_id = shell.execute(code)
    # get_msg can block for a reply
    reply = shell.get_msg()

    status = reply['content']['status']
    if status == 'ok':
        print 'succeeded!'
    elif status == 'error':
        print 'failed!'
        for line in reply['content']['traceback']:
            print line

run_cell(km, 'a=5')
run_cell(km, 'b=0')
run_cell(km, 'c=a/b')

运行的输出：

running:
a=5
succeeded!

running:
b=0
succeeded!

running:
c=a/b
failed!
---------------------------------------------------------------------------
ZeroDivisionError                         Traceback (most recent call last)
/Users/minrk/<ipython-input-11-fb3f79bd285b> in <module>()
----> 1 c=a/b

ZeroDivisionError: integer division or modulo by zero

有关如何解释回复的更多信息，请参见消息规范。如果相关，则stdout /
err和display数据将过来km.iopub_channel，您可以使用返回的msg_id将shell.execute()输出与给定执行关联。

PS：对于这些新功能的文档质量，我深表歉意。我们有很多工作要做。