02/02: gnu: python-scikit-learn: Patch test non-determinism.

[Ben Woodcroft]

benwoodcroft pushed a commit to branch master
in repository guix.

commit 8a6cd65a2a66107b5a1ae12138a9af0002f55983
Author: Ben Woodcroft <address@hidden>
Date:   Thu Dec 14 18:45:21 2017 +1000

    gnu: python-scikit-learn: Patch test non-determinism.
    
    * gnu/packages/patches/python-scikit-learn-fix-test-non-determinism.patch:
    New file.
    * gnu/packages/machine-learning.scm (python-scikit-learn)[source]: Use it.
    * gnu/local.mk (dist_patch_DATA): Add it.
---
 gnu/local.mk                                       |  1 +
 gnu/packages/machine-learning.scm                  |  4 +++-
 ...hon-scikit-learn-fix-test-non-determinism.patch | 25 ++++++++++++++++++++++
 3 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/gnu/local.mk b/gnu/local.mk
index 4682975..f6b29a7 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1014,6 +1014,7 @@ dist_patch_DATA =                                         
\
   %D%/packages/patches/python-parse-too-many-fields.patch      \
   %D%/packages/patches/python2-rdflib-drop-sparqlwrapper.patch \
   %D%/packages/patches/python-statsmodels-fix-tests.patch      \
+  %D%/packages/patches/python-scikit-learn-fix-test-non-determinism.patch      
\
   %D%/packages/patches/python-configobj-setuptools.patch       \
   %D%/packages/patches/python-faker-fix-build-32bit.patch      \
   %D%/packages/patches/python-pandas-skip-failing-tests.patch  \
diff --git a/gnu/packages/machine-learning.scm 
b/gnu/packages/machine-learning.scm
index cf400a0..c8bd5d7 100644
--- a/gnu/packages/machine-learning.scm
+++ b/gnu/packages/machine-learning.scm
@@ -621,7 +621,9 @@ computing environments.")
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32
-         "18n8775kyfwbvcjjjzda9c5sqy4737c0hrmj6qj1ps2jmlqzair9"))))
+         "18n8775kyfwbvcjjjzda9c5sqy4737c0hrmj6qj1ps2jmlqzair9"))
+       (patches (search-patches
+                "python-scikit-learn-fix-test-non-determinism.patch"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
diff --git 
a/gnu/packages/patches/python-scikit-learn-fix-test-non-determinism.patch 
b/gnu/packages/patches/python-scikit-learn-fix-test-non-determinism.patch
new file mode 100644
index 0000000..90328cc
--- /dev/null
+++ b/gnu/packages/patches/python-scikit-learn-fix-test-non-determinism.patch
@@ -0,0 +1,25 @@
+This patch stops a test sometimes failing because of non-determinism.  See
+https://github.com/scikit-learn/scikit-learn/pull/9542
+
+From ff9f6db6e8b59c2b3528c8137ed4054f57c1d7c4 Mon Sep 17 00:00:00 2001
+From: Hanmin Qin <address@hidden>
+Date: Sun, 13 Aug 2017 22:13:49 +0800
+Subject: [PATCH] add random_state
+
+---
+ sklearn/tests/test_kernel_ridge.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/sklearn/tests/test_kernel_ridge.py 
b/sklearn/tests/test_kernel_ridge.py
+index 4750a096ac6..979875870b6 100644
+--- a/sklearn/tests/test_kernel_ridge.py
++++ b/sklearn/tests/test_kernel_ridge.py
+@@ -10,7 +10,7 @@
+ from sklearn.utils.testing import assert_array_almost_equal
+ 
+ 
+-X, y = make_regression(n_features=10)
++X, y = make_regression(n_features=10, random_state=0)
+ Xcsr = sp.csr_matrix(X)
+ Xcsc = sp.csc_matrix(X)
+ Y = np.array([y, y]).T