Fix UUID(bytes_le=16)

Author: vstinner

Lib/test/test_uuid.py

@@ -225,13 +225,15 @@ def test_exceptions(self):
 badvalue(lambda: self.uuid.UUID(bytes=b'abc'))
 badvalue(lambda: self.uuid.UUID(bytes=b'\0'*15))
 badvalue(lambda: self.uuid.UUID(bytes=b'\0'*17))
+badtype(lambda: self.uuid.UUID(bytes=16))
 
 # Badly formed bytes_le.
 badtype(lambda: self.uuid.UUID(bytes_le='unicode'))
 badtype(lambda: self.uuid.UUID(bytes_le='u'*16))
 badvalue(lambda: self.uuid.UUID(bytes_le=b'abc'))
 badvalue(lambda: self.uuid.UUID(bytes_le=b'\0'*15))
 badvalue(lambda: self.uuid.UUID(bytes_le=b'\0'*17))
+badtype(lambda: self.uuid.UUID(bytes_le=16))
 
 # Badly formed fields.
 badvalue(lambda: self.uuid.UUID(fields=(1,)))

Lib/uuid.py

@@ -160,7 +160,8 @@ def __init__(self, hex=None, bytes=None, bytes_le=None, fields=None,
 raiseValueError('badly formed hexadecimal UUID string')
 int=int_(hex, 16)
 ifbytes_leisnotNone:
-ifnotisinstance(bytes_le, (bytes_, bytearray)):
+# Don't cast int to bytes to get a TypeError above
+ifnotisinstance(bytes_le, (bytes_, bytearray, int_)):
 bytes_le=bytes_(bytes_le)
 iflen(bytes_le) !=16:
 raiseValueError('bytes_le is not a 16-char string')