Use bytes.hex instead of binascii.hexlify in pbkdf2_hmac example (GH-8420)
diff --git a/Doc/library/hashlib.rst b/Doc/library/hashlib.rst
index baf6b0a..4a8d705 100644
--- a/Doc/library/hashlib.rst
+++ b/Doc/library/hashlib.rst
@@ -244,10 +244,10 @@
*dklen* is the length of the derived key. If *dklen* is ``None`` then the
digest size of the hash algorithm *hash_name* is used, e.g. 64 for SHA-512.
- >>> import hashlib, binascii
+ >>> import hashlib
>>> dk = hashlib.pbkdf2_hmac('sha256', b'password', b'salt', 100000)
- >>> binascii.hexlify(dk)
- b'0394a2ede332c9a13eb82e9b24631604c31df978b4e2f0fbd2c549944f9d79a5'
+ >>> dk.hex()
+ '0394a2ede332c9a13eb82e9b24631604c31df978b4e2f0fbd2c549944f9d79a5'
.. versionadded:: 3.4