commit 77b338be20f29712c0774e7c2d36d7afb541e4b6
author Antoine Pitrou <solipsis@pitrou.net> Mon Dec 14 18:00:06 2009 +0000
committer Antoine Pitrou <solipsis@pitrou.net> Mon Dec 14 18:00:06 2009 +0000
tree 071314bbc64d33e1cb3284764a1c7f2f13423bea
parent 338eae3460be044e1af9c590dff1a15baaa0520a

Issue #4757: `zlib.compress` and other methods in the zlib module now
raise a TypeError when given an `str` object (rather than a `bytes`-like
object).  Patch by Victor Stinner and Florent Xicluna.

Lib/tarfile.py

diff --git a/Lib/tarfile.py b/Lib/tarfile.py
index 7a67e15..7f08a98 100644
--- a/Lib/tarfile.py
+++ b/Lib/tarfile.py
@@ -410,7 +410,7 @@
             except ImportError:
                 raise CompressionError("zlib module is not available")
             self.zlib = zlib
-            self.crc = zlib.crc32("")
+            self.crc = zlib.crc32(b"")
             if mode == "r":
                 self._init_read_gz()
             else: