bpo-35115 Add __index__ to UUID class

[fcurella]

Casting a UUID to an int or to a string works as expected:

import uuid

value = uuid.UUID()
str(value)
int(value)

but casting to an hex() raises an exception:

import uuid

value = uuid.UUID()

# uuid instances already have the correct value stored in the `.hex` attribute
value.hex

# this raises `TypeError: 'UUID' object cannot be interpreted as an integer`
hex(value)

# this behaves correctly
hex(value.int)

Adding support for hex() should be simple enough as adding the following to the UUID class in:

cpython/Lib/uuid.py

Line 69 in 5475253

class UUID:

def __index__(self):
    return self.int

https://bugs.python.org/issue35115

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[tirkarthi]

https://github.com/python/cpython/pull/10244/files#diff-e2cd29d814548cea63c5269b8fd75effL163 should use self.uuid.UUID(hex_) since the for loop iteration variable is now changed to hex_.

[fcurella]

issue closed as wont fix