我可以让 ipython 退出调用代码吗？

Question

我有一些这样的代码：

form IPython import embed
for item in my_item_list:
    embed()

如果我再运行这个程序用

python my_example_program.py

在循环的第一次迭代中，我被放入 ipython shell 并且可以检查 item 和我想要的环境。

退出 ipython 循环恢复，然后我可以检查下一个 item 和您期望的环境。

有没有办法让我从 ipython 中退出此代码（以便我返回到 shell 提示符）。以任何方式打开另一个 shell 并终止进程？

Answer 1

IPython 中有一个 %kill_embedded 命令。
它不会让您直接返回 shell 提示符，但会跳过其他嵌入实例。

from IPython import embed

for item in range(5):
    print 'embedding', item
    embed()

这是输出：

 $ python my_example_program.py
embedding 0
Python 2.7.9 (default, Dec 13 2014, 22:30:33)
Type "copyright", "credits" or "license" for more information.

IPython 1.1.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: print item
0

In [2]: ^D

embedding 1
Python 2.7.9 (default, Dec 13 2014, 22:30:33)
Type "copyright", "credits" or "license" for more information.

IPython 1.1.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [2]: %kill_embedded
Are you sure you want to kill this embedded instance (y/n)? [y/N]  y
This embedded IPython will not reactivate anymore once you exit.

In [3]: print item
1

In [4]:

embedding 2
embedding 3
embedding 4
 $

UPD (06.03.2016): 似乎 %kill_embedded 功能在 IPython 4.0 中被破坏了；您可以使用 %exit_raise 这将引发异常，并且 return 返回到 shell.

我可以让 ipython 退出调用代码吗？

Can I make ipython exit from the calling code?

python

ipython