python
diff --git a/‎Lib/base64.py‎
Lines changed: 2 additions & 1 deletion b/‎Lib/base64.py‎
Lines changed: 2 additions & 1 deletion
@@ -304,7 +304,8 @@ def b16decode(s, casefold=False, *, ignorechars=b''):
         for b in b'abcdef':
             if b in s and b not in ignorechars:
                 raise binascii.Error('Non-base16 digit found')
-        s = s.translate(None, delete=b'abcdef')
+        if ignorechars:
+            s = s.translate(None, delete=b'abcdef')
     return binascii.unhexlify(s, ignorechars=ignorechars)
 
 #
Original file line number	Diff line number	Diff line change
`@@ -304,7 +304,8 @@ def b16decode(s, casefold=False, *, ignorechars=b''):`
`304`	`304`	`for b in b'abcdef':`
`305`	`305`	`if b in s and b not in ignorechars:`
`306`	`306`	`raise binascii.Error('Non-base16 digit found')`
`307`		`- s = s.translate(None, delete=b'abcdef')`
	`307`	`+ if ignorechars:`
	`308`	`+ s = s.translate(None, delete=b'abcdef')`
`308`	`309`	`return binascii.unhexlify(s, ignorechars=ignorechars)`
`309`	`310`
`310`	`311`	`#`