Add venv --remove {pex,all} option.

[jsirois]

This is especially useful for installing a PEX in a container image.

[jsirois]

For example:

$ python -mpex --python python3.10 --include-tools isort==5.10.1 -c isort -o /tmp/isort/isort.pex
$ cat <<EOF > /tmp/isort/Dockerfile
FROM python:3.10-slim
COPY isort.pex /isort.pex
RUN PEX_TOOLS=1 /isort.pex venv --rm all --compile /isort
ENTRYPOINT ["/isort/pex"]
EOF
$ docker build -t isort:5.10.1 /tmp/isort
Sending build context to Docker daemon   1.11MB
Step 1/4 : FROM python:3.10-slim
 ---> 650d66a00131
Step 2/4 : COPY isort.pex /isort.pex
 ---> Using cache
 ---> 3bfe59e08b0d
Step 3/4 : RUN PEX_TOOLS=1 /isort.pex venv --rm all --compile /isort
 ---> Using cache
 ---> a962a843c02a
Step 4/4 : ENTRYPOINT ["/isort/pex"]
 ---> Using cache
 ---> 7daaef265cf9
Successfully built 7daaef265cf9
Successfully tagged isort:5.10.1
$ time docker run --rm isort:5.10.1 --version

                 _                 _
                (_) ___  ___  _ __| |_
                | |/ _/ / _ \/ '__  _/
                | |\__ \/\_\/| |  | |_
                |_|\___/\___/\_/   \_/

      isort your imports, so you don't have to.

                    VERSION 5.10.1


real	0m0.467s
user	0m0.011s
sys	0m0.020s

[kaos]

Cool :)

[Eric-Arellano]

Cool!