I'm slowly starting to understand Pex a bit better; and each time I do so I find new confusions. I've followed https://blog.pantsbuild.org/optimizing-python-docker-deploys-using-pants/ in our deployment flows at work. The article claims that setting

execution_mode="venv"

is optimal for Docker builds. However, that is a runtime setting -- not a build time setting. Since the guide then recommends explicitly constructing the

venv

as part of the Dockerfile step, discarding the pex itself, I'm wondering if that is actually completely pointless to specify? Or does

pex --include-tools -o some.pex ; PEX_TOOLS=1 ./some-pex venv

change behavior if

--venv

was added when building the pex? It seems like it wouldn't, it just specifies that would be the default behavior?