如何将 arguments 传递给 python 脚本，该脚本将被提供给标准输入上的解释器？

Question

I have a bash script which exports two auxiliary python scripts, using heredoc with " ", and executes them from /tmp.

It works fine, but when i deployed this script on a server which has automatic /tmp cleanup, it will always delete the exported python scripts after a while.

Moreover, I can not manually copy the needed python scripts to the server, only this script executes.

an idea came to me

Right now I export the scripts like this

cat << "SCRIPT" > /tmp/script.py && chmod +x /tmp/script.py

And then execute them with an argument

I tried doing it like this

python << "SCRIPT"

The script runs, but it doesn't take arguemnts. I tried quoting and using xargs.

Is there any way to pass arguments to scripts executed like this?

Answer 1

Pass the Python interpreter - as the filename you want it to read code from, when you want it to get code from stdin. Thus:

python - "argument one" "argument two" "argument three" <<'EOF'
import sys, pprint
pprint.pprint(sys.argv)
EOF

...properly emits:

['-', 'argument one', 'argument two', 'argument three']

---

Another way to pass code into a Python interpreter is on the command line:

pyscript=$(cat <<'EOF'
import sys, pprint
pprint.pprint(sys.argv)
EOF
)

python -c "$pyscript" "argument one" "argument two" "argument three"

...which will have slightly different output:

['-c', 'argument one', 'argument two', 'argument three']