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improve examples

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DavHau 2020-08-26 19:51:40 +07:00
parent 2935985fda
commit c522f0328e
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examples.md
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@ -4,23 +4,25 @@
* [import mach-nix](#import-mach-nix)
* [mkPython / mkPythonShell](#mkpython--mkpythonshell)
* [From a list of requirements](#from-a-list-of-requirements)
* [Mix arbitrary sources with requirements.](#mix-arbitrary-sources-with-requirements)
* [Mix requirements with packages from arbitrary sources.](#mix-requirements-with-packages-from-arbitrary-sources)
* [buildPythonPackage / buildPythonApplication](#buildpythonpackage--buildpythonapplication)
* [Build python package from its source code and autodetect requirements](#build-python-package-from-its-source-code-and-autodetect-requirements)
* [Build python package from its source code](#build-python-package-from-its-source-code)
* [buildPythonPackage from GitHub](#buildpythonpackage-from-github)
* [buildPythonPackage from GitHub with extras](#buildpythonpackage-from-github-with-extras)
* [buildPythonPackage from GitHub and add missing requirements](#buildpythonpackage-from-github-and-add-missing-requirements)
* [buildPythonPackage from GitHub (reproducible source)](#buildpythonpackage-from-github-reproducible-source)
* [buildPythonPackage from GitHub (explicit source)](#buildpythonpackage-from-github-explicit-source)
* [buildPythonPackage from GitHub (manual requirements)](#buildpythonpackage-from-github-manual-requirements)
* [Examples for Tensorflow / PyTorch](#examples-for-tensorflow--pytorch)
* [Tensorflow with SSE/AVX/FMA support](#tensorflow-with-sseavxfma-support)
* [Tensorflow via wheel (newer versions, quicker builds)](#tensorflow-via-wheel-newer-versions-quicker-builds)
* [Recent PyTorch with nixpkgs dependencies, and custom python](#recent-pytorch-with-nixpkgs-dependencies-and-custom-python)
* [Using '_' (simplified override system)](#using-_-simplified-override-system)
* [General usage](#general-usage)
* [Example: add missing build inputs](#example-add-missing-build-inputs)
* [Using overrides](#using-overrides)
* [Fixing packages via overrides](#fixing-packages-via-overrides)
* [Include poetry2nix overrides](#include-poetry2nix-overrides)
<!-- Added by: grmpf, at: Tue 25 Aug 2020 02:28:02 PM +07 -->
<!-- Added by: grmpf, at: Wed 26 Aug 2020 07:51:15 PM +07 -->
<!--te-->
@ -150,13 +152,7 @@ mach-nix.mkPython {
# no need to specify provider settings since wheel is the default anyways
# Fix the tensorflow wheel
overrides_post = [( pythonSelf: pythonSuper: {
tensorflow = pythonSuper.tensorflow.overridePythonAttrs ( oldAttrs: {
postInstall = ''
rm $out/bin/tensorboard
'';
});
})];
_.tensorflow.postInstall = "rm $out/bin/tensorboard";
}
```
@ -183,9 +179,9 @@ mach-nix.mkPython rec {
}
```
## Using 'Underscore' (simplified override system)
## Using '_' (simplified override system)
### General usage
```nix
```
with mach-nix.nixpkgs;
mach-nix.mkPython {
@ -202,7 +198,7 @@ mach-nix.mkPython {
}
```
### Example: add missing build inputs
For example the package web2ldap depends on another python package `ldap0` which is only available via sdist and the build fails because of missing non-python dependencies.
For example the package web2ldap depends on another python package `ldap0` which fails to build because of missing dependencies.
```nix
with mach-nix.nixpkgs;
mach-nix.mkPython {
@ -215,12 +211,7 @@ mach-nix.mkPython {
```
## Using overrides
### Fixing packages via overrides
See previous example for tensorflow wheel
### Include poetry2nix overrides
I have a complex requirements.txt which includes `imagecodecs`. It is available via wheel, but I prefer to build everything from source. This package has complex build dependencies and is not available from nixpkgs. Luckily poetry2nix` overrides make it work.
```nix