how to import python variable to bash

Question

I have two scripts: Python:

if canceled==True:
 os.environ["c"] = "0"
if canceled==False:
 os.environ["c"] = "1"

Bash:

kill_jobs()
{
 pkill -TERM -P "$BASHPID"
 echo $c
 if [ $c == "0" ]
 then
 echo -e "OPERATIONS CANCELED"
 elif [ $c == "1" ]
 then
 echo -e "OPERATIONS FINISHED"
 fi
}
trap kill_jobs EXIT

How can I do to pass a python variable to bash script ? (My level in bash is near to 0 ...) Thanks

Edit: Now I have this error: (in french)

[: == : opérateur unaire attendu

Answer 1

Or you can try:

os.environ["c"] = "value"

You can set it this way, I guess

Refer

• Guillaume: ok, your solution seems to work. I have another problem, I will edit my question.
• PradyJord: either if [ $c -eq 0 ] or if [ "$c" == "0" ]. Please ask one question in one post. I haven't set this standard, but I guess that is what everyone follow here.

Answer 2

The python script should end with:

print c

Then you use it in bash with:

c=$(python_script)

• Guillaume: Thanks for your answer, no need to pass in environment variable ?
• Barmar: No, just use ordinary shell variables. Environment variables are inherited by child processes.