Bug report

Bug description:

str.index() and str.rindex() get the error message as shown below:

v = str('Hello')

print(v.index('abc'))
print(v.rindex('abc'))
# ValueError: substring not found

But bytes.index() and bytes.rindex() get the different error message as shown below:

v = bytes(b'Hello')

print(v.index(b'abc'))
print(v.rindex(b'abc'))
# ValueError: subsection not found

And, bytearray.index() and bytearray.rindex() also get the different error message as shown below:

v = bytearray(b'Hello')

print(v.index(b'abc'))
print(v.rindex(b'abc'))
# ValueError: subsection not found

So, the error message of them should be the same for consistency as shown below:

ValueError: substring not found

Or:

ValueError: subsection not found

CPython versions tested on:

3.12

Operating systems tested on:

Windows