gh-115961: Add name and mode attributes for compressed file-like objects (GH-116036)

* Add name and mode attributes for compressed and archived file-like objects
  in modules bz2, lzma, tarfile and zipfile.
* Change the value of the mode attribute of GzipFile from integer (1 or 2)
  to string ('rb' or 'wb').
* Change the value of the mode attribute of ZipExtFile from 'r' to 'rb'.

1 files changed, 4 insertions, 0 deletions

diff --git a/Lib/tarfile.py b/Lib/tarfile.py
index 78bb10c..5fc6183 100755
--- a/Lib/tarfile.py
+++ b/Lib/tarfile.py
@@ -636,6 +636,10 @@ class _FileInFile(object):
     def flush(self):
         pass
 
+    @property
+    def mode(self):
+        return 'rb'
+
     def readable(self):
         return True