bpo-44439: BZ2File.write() / LZMAFile.write() handle buffer protocol correctly (GH-26764) (GH-26845)

No longer use len() to get the length of the input data. For some buffer protocol objects,
the length obtained by using len() is wrong.
(cherry picked from commit bc6c12c72a)

Co-authored-by: Ma Lin <animalize@users.noreply.github.com>

Lib/test/test_gzip.py

@@ -592,6 +592,15 @@ def test_prepend_error(self):
         with gzip.open(self.filename, "rb") as f:
             f._buffer.raw._fp.prepend()
 
+    def test_issue44439(self):
+        q = array.array('Q', [1, 2, 3, 4, 5])
+        LENGTH = len(q) * q.itemsize
+
+        with gzip.GzipFile(fileobj=io.BytesIO(), mode='w') as f:
+            self.assertEqual(f.write(q), LENGTH)
+            self.assertEqual(f.tell(), LENGTH)
+
+
 class TestOpen(BaseTest):
     def test_binary_modes(self):
         uncompressed = data1 * 50