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I’m a bit confused why uv is not an option for you. You don’t need to compile Python, it manages virtualenvs for you, you can use them with Jupyter and vscode.

I’m a bit confused why uv is not an option for you. You don’t need to compile Python, it manages virtualenvs for you, you can use them with Jupyter and vscode. What are you missing?

qwertox 2y ago
So the only difference is that Conda also isolates "system" libraries (like libcublasLt.so), or does uv also do this? It's not that uv is not an option for me, I made this move to miniforge before uv was on my radar because it wasn't popular, but I'm still at a point where I'm not sure if uv can do what I need.
- the_mitsuhiko 2y ago
  uv does not ship system libraries because pypi does not have them. There is a philosophical difference between pypi and conda today. I believe over time pypi will likely ship some system libraries but we will see.
  - qwertox 2y ago
    So uv is resticted to pypi but does offer isolated Python installations, with precompiled Python binaries?
    - chippiewill 2y ago
      Yeah it has precompiled Python binaries. They're custom standalone builds of CPython: https://github.com/astral-sh/python-build-standalone https://github.com/astral-sh/python-build-standalone You can also import existing Python versions into uv, for example on my Mac it has imported the Homebrew versions.
    - the_mitsuhiko 2y ago
      It doesn’t “restrict” to pypi but it wants to be rooted in pypi. That means if you install “tensorflow” you get it from there. The state of pypi is the state of pypi and I have some hope that this also will improve. See for instance the efforts that go into “wheel next”.
- rmholt 2y ago
  According to these docs https://docs.astral.sh/uv/pip/environments/ https://docs.astral.sh/uv/pip/environments/ I think uv supports conda envs
- dharmab 2y ago
  Try Pixi (https://prefix.dev/ https://prefix.dev/). It uses uv for Python while also managing your other libraries from Conda. It has a migration path from Conda.

I’m a bit confused why uv is not an option for you. You don’t need to compile Python, it manages virtualenvs for you, you can use them with Jupyter and vscode. What are you missing?

qwertox 2y ago

So the only difference is that Conda also isolates "system" libraries (like libcublasLt.so), or does uv also do this? It's not that uv is not an option for me, I made this move to miniforge before uv was on my radar because it wasn't popular, but I'm still at a point where I'm not sure if uv can do what I need.

the_mitsuhiko 2y ago
uv does not ship system libraries because pypi does not have them. There is a philosophical difference between pypi and conda today. I believe over time pypi will likely ship some system libraries but we will see.
- qwertox 2y ago
  So uv is resticted to pypi but does offer isolated Python installations, with precompiled Python binaries?
  - chippiewill 2y ago
    Yeah it has precompiled Python binaries. They're custom standalone builds of CPython: https://github.com/astral-sh/python-build-standalone https://github.com/astral-sh/python-build-standalone You can also import existing Python versions into uv, for example on my Mac it has imported the Homebrew versions.
  - the_mitsuhiko 2y ago
    It doesn’t “restrict” to pypi but it wants to be rooted in pypi. That means if you install “tensorflow” you get it from there. The state of pypi is the state of pypi and I have some hope that this also will improve. See for instance the efforts that go into “wheel next”.
rmholt 2y ago
According to these docs https://docs.astral.sh/uv/pip/environments/ https://docs.astral.sh/uv/pip/environments/ I think uv supports conda envs
dharmab 2y ago
Try Pixi (https://prefix.dev/ https://prefix.dev/). It uses uv for Python while also managing your other libraries from Conda. It has a migration path from Conda.