[Python] Running a bash scripts content from within python script. Not executing a .sh file...

I have an encrypted bash script inside a .pkl file which my python script needs to decrypt and execute. The bash script consists multiple lines and is complex. I need a way to execute this script from within python, without a .sh file.

Using a raw string to store the script works as in the example below, but there is no way of turning an already initialized string object(I get it from the .pkl as I mentioned) to a raw string programmatically as far as I could understand.

bash_script = r"""
multi
line
bash
script
"""

# Run the script
process = subprocess.Popen(['/bin/bash'], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = process.communicate(bash_script.encode())

# Output the result
print(stdout.decode())


Some of the errors I get when I store the script in a normal str object and run it are below.

/bin/bash: line 105: unexpected EOF while looking for matching `"'
/bin/bash: line 106: syntax error: unexpected end of file


One solution is to export the script into a temp file under /tmp/, make it executable and execute the file but I want to keep it as simle as possible.

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