See #15986. Chain exceptions in linalg

2 files changed, 4 insertions, 4 deletions

diff --git a/numpy/linalg/tests/test_build.py b/numpy/linalg/tests/test_build.py
index 4859226d9..868341ff2 100644
--- a/numpy/linalg/tests/test_build.py
+++ b/numpy/linalg/tests/test_build.py
@@ -15,8 +15,8 @@ class FindDependenciesLdd:
         try:
             p = Popen(self.cmd, stdout=PIPE, stderr=PIPE)
             stdout, stderr = p.communicate()
-        except OSError:
-            raise RuntimeError(f'command {self.cmd} cannot be run')
+        except OSError as e:
+            raise RuntimeError(f'command {self.cmd} cannot be run') from e
 
     def get_dependencies(self, lfile):
         p = Popen(self.cmd + [lfile], stdout=PIPE, stderr=PIPE)
diff --git a/numpy/linalg/tests/test_linalg.py b/numpy/linalg/tests/test_linalg.py
index 21fab58e1..8a270f194 100644
--- a/numpy/linalg/tests/test_linalg.py
+++ b/numpy/linalg/tests/test_linalg.py
@@ -348,10 +348,10 @@ class LinalgTestCase:
 
             try:
                 case.check(self.do)
-            except Exception:
+            except Exception as e:
                 msg = f'In test case: {case!r}\n\n'
                 msg += traceback.format_exc()
-                raise AssertionError(msg)
+                raise AssertionError(msg) from e
 
 
 class LinalgSquareTestCase(LinalgTestCase):