Merge pull request #18274 from tautaus/master

MAINT: Chain exceptions in linalg

3 files changed, 6 insertions, 6 deletions

diff --git a/numpy/linalg/lapack_lite/make_lite.py b/numpy/linalg/lapack_lite/make_lite.py
index cf15b2541..b145f6c4f 100755
--- a/numpy/linalg/lapack_lite/make_lite.py
+++ b/numpy/linalg/lapack_lite/make_lite.py
@@ -261,8 +261,8 @@ def runF2C(fortran_filename, output_dir):
         subprocess.check_call(
             ["f2c"] + F2C_ARGS + ['-d', output_dir, fortran_filename]
         )
-    except subprocess.CalledProcessError:
-        raise F2CError
+    except subprocess.CalledProcessError as e:
+        raise F2CError from e
 
 def scrubF2CSource(c_file):
     with open(c_file) as fo:
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):