Exit the shell script from embedded python code

Question

I want to exit the shell script from the embedded python code. Below os.system() is not working and rest of the shell scripting code is still getting executed.

echo "this is shell code"
a=10
python << END
import os
print "this is python code"

if True:
        print "yes"
        print $a
        os.system("exit 1")
END
echo "I am out of python code"

Answer 1

You have to exit the shell explicitly based on the result of the Python script.

echo "this is shell code"
a=10
python "$a" <<END || exit
print "this is python code"
if True:
    print "yes"
    print(sys.argv[1])
    sys.exit(1)
END
echo "I am out of python code"

In this example, where the Python code unconditionally exits with a status of 1, the final echo will not be reached, as the nonzero exit status will cause the shell command exit to run.