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by sevagh 2064 days ago
Go more than makes up for this in the deployment aspect, since deploying Python in 2020 (Python 2, Python 3, conda, pip, venv, system interpreter, poetry, etc.) is still a mess.
1 comments

Only a mess if you use python 2, conda, etc... What’s difficult about this?

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/in...)" curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/maste... | python - brew install pyenv // update shell with pyenv pointer pyenv install 3.9.0 pyenv global 3.9.0 poetry init poetry config virtualenvs.in-project true --local poetry install

For deployment, Docker python3:alpine, install poetry, copy over pyproject.toml and install

> What’s difficult about this?

Well, for starters, that particular multi-liner:

- installs an entire package manager, which may or may not conflict with system tools or a different package manager,

- assumes pyenv will build Python against the system libraries without additional flags (it won't if you're running Big Sur, you'll need zlib from Homebrew),

- assumes you are on macOS, and does not attempt to work on Windows or Linux, or account for the idea that someone might not want to deploy a program using Docker.

Plus, it does so non-reproducibly and downloads random binaries from the internet.
Which makes rolling back a bad push really interesting. Give me a append only repo with my static binaries that my compute nodes deploy from. I even went to the trouble to put Python into RPMs for this.
pip is broken in no many aspects, between pip and pip3, things installed in your home folder vs /var, "binary" entries that don't exist after installing a tool, cryptics stack traces because of missing libs / not compatible for your platform ( native build ) ect ...

Why do we need virtual env in 2020?

It's one of the worse "modern" language to build, even Java / NodeJS are better.