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sim submodule is missing after pip install --upgrade nmigen[builtin-yosys] #637

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chipmuenk opened this issue Sep 29, 2021 · 5 comments
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sim submodule is missing after pip install --upgrade nmigen[builtin-yosys] #637

chipmuenk opened this issue Sep 29, 2021 · 5 comments
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@chipmuenk
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I'd like to integrate nmigen into a software package of mine which is installed via pip, however, when I do

pip install --upgrade nmigen[builtin-yosys]

or simply

pip install nmigen

the sim submodule is missing after installation. I tried uninstalling and reinstalling and clearing the pip cache several times but the only thing that worked so far is installing the very latest version

pip install git+https://github.com/nmigen/nmigen.git#egg=nmigen[builtin-yosys]

instead (which I don't want to do inside a software package). I'm using Windows with Python 3.8.2 running in an venv.

Previously, I had migen installed in the same venv, maybe there is some dependency?
@whitequark
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At the moment I would recommend using nmigen from git. We'll do a release soon (before the end of 2021), so this won't be necessary for long.

@mattvenn
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would suggest updating the docs to encourage install from git.

@mattvenn
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can confirm that installing from git works

@whitequark
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would suggest updating the docs to encourage install from git.

The docs already explain that installing from git will result in more recent code: https://nmigen.info/nmigen/latest/install.html#installing-nmigen. Going beyond that is not something I think makes a lot of sense.

@chipmuenk
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Unfortunately, I haven't managed to add a git-based install to the requirements.txt list of my project. As a consequence, I'm using my own fixpoint library for simulation in my project now and will switch to a templating approach for code generation.

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@whitequark @mattvenn @chipmuenk