我正在运行一个带有 PyQ 内核的 jupyter notebook，并且能够同时运行 python 和 q 代码。但是：每当一个单元产生错误（如调用 a nonexisting_function()）时，在我重新启动内核之前不会执行更多单元。相比之下，使用 Python 内核，我也可以在出现错误后运行其他（或相同）单元，我认为这是正常行为。
我在 64 位 ubuntu 上使用带有虚拟环境 ( mypyq) 的 miniconda3。
(mypyq) user@workstation:~$ conda --version
conda 4.5.11
(mypyq) user@workstation:~$ conda list
# packages in environment at /home/user/miniconda3/envs/mypyq:
#
# Name Version Build Channel
<lines skipped>
kdb 3.6 2018.10.23 kx
pyq 4.1.4 py36h39e3cac_0 enlnt
pyq-kernel 1.0 <pip>
python 3.6.7 h0371630_0
(mypyq) user@workstation:~$ jupyter notebook --debug
<lines skipped>
6*7在笔记本中 运行：
[D 09:37:54.476 NotebookApp] activity on ...: status
[D 09:37:54.476 NotebookApp] activity on ...: execute_input
[D 09:37:54.477 NotebookApp] activity on ...: execute_result
[D 09:37:54.479 NotebookApp] activity on ...: status
单元格输出是42，到目前为止一切正常。
现在nonexisting()在笔记本中运行：
[D 09:38:38.266 NotebookApp] activity on ...: status
[D 09:38:38.267 NotebookApp] activity on ...: execute_input
[D 09:38:38.315 NotebookApp] activity on ...: error
[D 09:38:38.317 NotebookApp] activity on ...: status
笔记本单元格输出：
------------------------------------
NameError Traceback (most recent call last)
<ipython-input-2-124a31d9d771> in <module>
----> 1 nonexisting()
NameError: name 'nonexisting' is not defined
再次运行6*7单元格：
[D 09:39:29.799 NotebookApp] activity on ...: status
[D 09:39:29.799 NotebookApp] activity on ...: status
我至少...: execute_result在控制台中失踪了。在我重新启动内核之前，笔记本中也没有输出。
Python 内核不会发生这种情况，只有 PyQ 内核才会发生这种情况。在控制台中运行 PyQ 也可以：
(mypyq) user@workstation:~$ pyq
Python 3.6.7 |Anaconda, Inc.| (default, Oct 23 2018, 19:19:38)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> q('9#til 3')
k('0 1 2 0 1 2 0 1 2')
>>> nonexisting()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'nonexisting' is not defined
>>> 6*7
42
>>> exit()
IPython 也可以：
(mypyq) user@workstation:~$ pyq -m IPython
Python 3.6.7 |Anaconda, Inc.| (default, Oct 23 2018, 19:19:38)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.2.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: %load_ext pyq.magic
In [2]: from pyq import q
In [3]: q.til(10)
Out[3]: 0 1 2 3 4 5 6 7 8 9
In [4]: nonexisting()
-------------------------------------------------------
NameError Traceback (most recent call last)
<ipython-input-4-124a31d9d771> in <module>
----> 1 nonexisting()
NameError: name 'nonexisting' is not defined
In [5]: q.til(10)
Out[5]: 0 1 2 3 4 5 6 7 8 9
In [6]: exit()
运行错误单元后，当我使用 Ctrl-C 关闭 jupyter notebook 服务器时，它报告超时并杀死内核。
Shutdown this notebook server (y/[n])? y
[C 11:03:05.086 NotebookApp] Shutdown confirmed
[I 11:03:05.086 NotebookApp] Shutting down 1 kernel
[D 11:03:10.100 NotebookApp] Kernel is taking too long to finish, killing
[I 11:03:10.106 NotebookApp] Kernel shutdown: