Jupyter single line bash to python variable

Question

I really like the ability of jupyter to mix bash commands inline like this:

for d in list_of_dirs:
    ! ls {d}

However, is there any way to get the output of one of these inline commands to be assigned to a python variable? For example as a python list?

trsvchn · Accepted Answer · 2019-04-09 19:03:21Z

5

Something like this?

Code:

python_list = []
for d in list_of_dirs:
    temp_list = !ls {d}
    python_list.extend(temp_list)

answered Apr 9, 2019 at 19:03

trsvchn

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2 Comments

Austin Over a year ago

Ah! I feel stupid now for not trying to just directly assign it to a variable. Thanks!! Will accept this when it allows.

trsvchn Over a year ago

It's Python! Use pseudo-code if you are not sure!))

Ravishankar Sivasubramaniam · Accepted Answer · 2019-04-09 19:08:37Z

4

This works well

for d in list_of_dirs:
    out = !'ls {0}'.format('d')

answered Apr 9, 2019 at 19:08

Ravishankar Sivasubramaniam

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Comments

Ravishankar Sivasubramaniam · Accepted Answer · 2019-04-09 18:59:04Z

1

os.popen works for this. popen - opens a pipe to or from command. The return value is an open file object connected to the pipe, which can be read. split('\n') converts the output to list

import os
list_of_ls = os.popen("ls").read().split('\n')
print list_of_ls

answered Apr 9, 2019 at 18:59

Ravishankar Sivasubramaniam

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1 Comment

Austin Over a year ago

hmm interesting alternative, thank you. If it turns out that assigning ! output to a variable directly isn't possible I'll select this answer!

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