gnu: Add python-scikit-optimize.

* gnu/packages/python-science.scm (python-scikit-optimize): New variable.

gnu/packages/python-science.scm

@@ -245,6 +245,34 @@ logic, also known as grey logic.")
      "Scikit-image is a collection of algorithms for image processing.")
     (license license:bsd-3)))
 
+(define-public python-scikit-optimize
+  (package
+    (name "python-scikit-optimize")
+    (version "0.9.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "scikit-optimize" version))
+              (sha256
+               (base32
+                "0230ya8bwrzxjwcy2vz23a3hg6caggnnmg2vq1f9zz2797kckn3p"))))
+    (build-system pyproject-build-system)
+    (propagated-inputs
+     (list python-joblib
+           python-matplotlib
+           python-numpy
+           python-pyaml
+           python-scikit-learn
+           python-scipy))
+    (native-inputs
+     (list python-pytest))
+    (home-page "https://scikit-optimize.github.io/")
+    (synopsis "Sequential model-based optimization toolbox")
+    (description "Scikit-Optimize, or @code{skopt}, is a simple and efficient
+library to minimize (very) expensive and noisy black-box functions.  It
+implements several methods for sequential model-based optimization.
+@code{skopt} aims to be accessible and easy to use in many contexts.")
+    (license license:bsd-3)))
+
 (define-public python-scikit-allel
   (package
     (name "python-scikit-allel")