Merge pull request #9159 from gmarkall/fix-findlib-filenotfounderror

Fix uncaught exception in `find_file()`

numba/misc/findlib.py

@@ -53,7 +53,10 @@ def find_file(pat, libdir=None):
         libdirs = list(libdir)
     files = []
     for ldir in libdirs:
-        entries = os.listdir(ldir)
+        try:
+            entries = os.listdir(ldir)
+        except FileNotFoundError:
+            continue
         candidates = [os.path.join(ldir, ent)
                       for ent in entries if pat.match(ent)]
         files.extend([c for c in candidates if os.path.isfile(c)])

numba/tests/test_findlib.py

@@ -0,0 +1,12 @@
+from numba.tests.support import TestCase, unittest
+from numba.misc import findlib
+
+
+class TestFindlib(TestCase):
+    def test_find_file_nonexistent_path(self):
+        candidates = findlib.find_file('libirrelevant.so', 'NONEXISTENT')
+        self.assertEqual(candidates, [])
+
+
+if __name__ == '__main__':
+    unittest.main()