From 691a732cfdc823ec6afaec500cae980e4f6b248d Mon Sep 17 00:00:00 2001
From: Sharlatan Hellseher <sharlatanus@gmail.com>
Date: Mon, 29 Jan 2024 12:30:33 +0000
Subject: gnu: Add python-extinction.

* gnu/packages/astronomy.scm (python-extinction): New variable.

Change-Id: I0f8877f8c79f6dd03150d92269c238cd706cc0ba
---
 gnu/packages/astronomy.scm | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/gnu/packages/astronomy.scm b/gnu/packages/astronomy.scm
index 6324d941a8..d4c731a797 100644
--- a/gnu/packages/astronomy.scm
+++ b/gnu/packages/astronomy.scm
@@ -2114,6 +2114,32 @@ for a table giving the position of a planet, asteroid, or comet for a series
 of dates.")
     (license license:expat)))
 
+(define-public python-extinction
+  (package
+    (name "python-extinction")
+    (version "0.4.6")
+    (source
+     (origin
+       (method git-fetch) ; No tests in PyPI
+       (uri (git-reference
+             (url "https://github.com/kbarbary/extinction")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1adxq926jd469mxm6llvsljgf2jqb06905h61i9qzc7m2yrm4wga"))))
+    (build-system pyproject-build-system)
+    (arguments
+     (list
+      #:test-flags #~(list "test.py")))
+    (native-inputs (list python-cython python-pytest))
+    (propagated-inputs (list python-numpy))
+    (home-page "http://github.com/kbarbary/extinction")
+    (synopsis "Fast interstellar dust extinction laws")
+    (description
+     "This package provides a cython-optimized implementations of empirical dust
+exitinction laws found in the literature.")
+    (license license:expat)))
+
 (define-public python-hvpy
   (package
     (name "python-hvpy")
-- 
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