Print bash script output in Python

Question

I have a Python code that will run a script file.The script file will output the version tag of specific git repository.

My script file named 'start.sh' is as follows:

#!/bin/sh
git clone https://xxxxxxxxxx:[email protected]/xxxxxxx/xxxxx.git
cd xxxxxxxx
git config --global user.email "xxxxxxxx"
git config --global user.name "xxxxxxxxx"
IMAGE_TAG=`echo \`git describe --tags\``
echo $IMAGE_TAG

My Python code is as follows:

import os
git_tag = os.popen('sh start.sh')
print(git_tag)

When I run the script file separately, it will return me the git tag. But, Whenever I try to print it in the Python code, it's not working.

How can I solve this issue?

You should use subprocess instead see here.

Paul Rooney
– Paul Rooney

2020-09-25 05:54:10 +00:00
Commented Sep 25, 2020 at 5:54 — Paul Rooney
– Paul Rooney, Commented Sep 25, 2020 at 5:54
What's with the nested useless echos?

tripleee
– tripleee

2020-09-25 06:47:57 +00:00
Commented Sep 25, 2020 at 6:47 — tripleee
– tripleee, Commented Sep 25, 2020 at 6:47

speedi33 · Accepted Answer · 2020-09-25 05:47:26Z

1

Since you are using Python anyway, you could think of using GitPython as an alternative. You can list all your tags with:

from git import Repo
repo = Repo("path/to/repo")
print(repo.tags)

answered Sep 25, 2020 at 5:47

speedi33

1781 silver badge9 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Dipendra Dangal Over a year ago

I have private git hub repository. So, it seems like I need to add authentication mechanism with this library as well.

speedi33 Over a year ago

Maybe have a look at stackoverflow.com/a/62796479/8505949. I haven't verified it myself but seems to be a good point to start from.

tripleee · Accepted Answer · 2020-09-25 06:49:54Z

1

Try like this

from subprocess import check_output
out = check_output(['sh', 'start.sh'])
print(out)

edited Sep 25, 2020 at 6:49

tripleee

192k37 gold badges318 silver badges367 bronze badges

answered Sep 25, 2020 at 5:57

Ivan

7,5111 gold badge22 silver badges27 bronze badges

1 Comment

tripleee Over a year ago

You should not provide Python 2 answers to questions which are explicitly tagged python-3.x.

AtharvaKamble · Accepted Answer · 2020-09-25 06:26:30Z

0

According to python's documentation, os.popen() function has been deprecated since version 2.6. You might want to use subprocess module.

P.S: I wanted to comment but couldn't hence this answer.

answered Sep 25, 2020 at 6:26

AtharvaKamble

337 bronze badges

1 Comment

tripleee Over a year ago

You are linking to Python 2 documentation. It was reinstated sometime in Python 3.x, though now it's simply an (unnecessary) wrapper for subprocess.

ashish_k · Accepted Answer · 2020-09-25 08:55:15Z

0

For python3-X:

from subprocess
git_tag = subprocess.run(['sh', 'start.sh'], capture_output=True, text=True)
print(git_tag.stdout)

answered Sep 25, 2020 at 8:55

ashish_k

1,5912 gold badges13 silver badges28 bronze badges

Collectives™ on Stack Overflow

Print bash script output in Python

4 Answers 4

2 Comments

1 Comment

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

2 Comments

1 Comment

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related