From ce1f66fd9fbccd8dc27ffb6d8338ab3566d03026 Mon Sep 17 00:00:00 2001
From: Helmut Grohne <helmut@subdivi.de>
Date: Sun, 25 Feb 2024 19:58:43 +0100
Subject: examples/chroottar.py: make pylint happier

---
 examples/chroottar.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/examples/chroottar.py b/examples/chroottar.py
index 69acd46..d229956 100755
--- a/examples/chroottar.py
+++ b/examples/chroottar.py
@@ -39,8 +39,10 @@ class TarFile(tarfile.TarFile):
             raise NotImplementedError("zst does not support a fileobj")
         try:
             import zstandard
-        except ImportError:
-            raise tarfile.CompressionError("zstandard module not available")
+        except ImportError as err:
+            raise tarfile.CompressionError(
+                "zstandard module not available"
+            ) from err
         if mode == "r":
             zfobj = zstandard.open(name, "rb")
         else:
@@ -80,6 +82,7 @@ class TarFile(tarfile.TarFile):
                 "zstd": "zst",
             }[compmodule]
         except KeyError:
+            # pylint: disable=raise-missing-from  # no value in chaining
             raise ValueError(f"cannot guess comptype for module {compmodule}")
 
 
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