[Setup] A part of constant value names.

I refer to name of Python API.
See also: https://docs.python.org/3/library/stdtypes.html#str.replace

BEFORE ->
OLD

AFTER ->
NEW
[Setup] Fix variable names in for statement.

I refer to name of Python API.
See also: https://docs.python.org/3/library/stdtypes.html#str.replace

replaced_value ->
old

replace_value ->
new