bash cell magi c запускается, но потом выдает длинную ошибку

Question

Учитывая следующую bash ячейку magi c:

> %%bash
! ls

Команда выполняется, но затем выдает исключение:

Untitled.ipynb
contradictory-my-dear-watson.zip
sample_submission.csv
test.csv
train.csv
---------------------------------------------------------------------------
CalledProcessError                        Traceback (most recent call last)
<ipython-input-2-9b04a68257be> in <module>
----> 1 get_ipython().run_cell_magic('bash', '', '! ls\n')

~/miniconda3/lib/python3.7/site-packages/IPython/core/interactiveshell.py in run_cell_magic(self, magic_name, line, cell)
   2360             with self.builtin_trap:
   2361                 args = (magic_arg_s, cell)
-> 2362                 result = fn(*args, **kwargs)
   2363             return result
   2364 

~/miniconda3/lib/python3.7/site-packages/IPython/core/magics/script.py in named_script_magic(line, cell)
    140             else:
    141                 line = script
--> 142             return self.shebang(line, cell)
    143 
    144         # write a basic docstring:

<decorator-gen-110> in shebang(self, line, cell)

~/miniconda3/lib/python3.7/site-packages/IPython/core/magic.py in <lambda>(f, *a, **k)
    185     # but it's overkill for just that one bit of state.
    186     def magic_deco(arg):
--> 187         call = lambda f, *a, **k: f(*a, **k)
    188 
    189         if callable(arg):

~/miniconda3/lib/python3.7/site-packages/IPython/core/magics/script.py in shebang(self, line, cell)
    243             sys.stderr.flush()
    244         if args.raise_error and p.returncode!=0:
--> 245             raise CalledProcessError(p.returncode, cell, output=out, stderr=err)
    246 
    247     def _run_script(self, p, cell, to_close):

CalledProcessError: Command 'b'! ls\n'' returned non-zero exit status 1.

Какова причина ошибки и есть ли исправление / обходной путь?